Crystal Growth & DesignPub Date : 2024-10-09DOI: 10.1021/acs.cgd.4c0092510.1021/acs.cgd.4c00925
Elias Semlali*, Evelyne Gil, Geoffrey Avit, Yamina André, Arthur Sauvagnat, Jihen Jridi, Andriy V. Moskalenko, Philip A. Shields, Névine Rochat, Adeline Grenier and Agnès Trassoudaine*,
{"title":"Control of SAG-GaN at the Nanoscale","authors":"Elias Semlali*, Evelyne Gil, Geoffrey Avit, Yamina André, Arthur Sauvagnat, Jihen Jridi, Andriy V. Moskalenko, Philip A. Shields, Névine Rochat, Adeline Grenier and Agnès Trassoudaine*, ","doi":"10.1021/acs.cgd.4c0092510.1021/acs.cgd.4c00925","DOIUrl":"https://doi.org/10.1021/acs.cgd.4c00925https://doi.org/10.1021/acs.cgd.4c00925","url":null,"abstract":"<p >Selective area growth (SAG) of GaN nanowires was performed on GaN on c-plane sapphire templates masked with SiN using hydride vapor phase epitaxy (HVPE). GaN nanowires exhibited various morphologies, discussed as a function of the pattern design, the partial pressure of the Ga gaseous precursor, the composition of the carrier gas, and the growth temperature. The morphologies are elucidated by involving a comparative study of growth rates of facets relative to each other. CL measurements showed high emission quality for GaN nanowires grown at 930 °C. This work places HVPE as an effective epitaxial technique for growing III–N nanostructure-based devices at a low cost.</p>","PeriodicalId":34,"journal":{"name":"Crystal Growth & Design","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142585681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Crystal Growth & DesignPub Date : 2024-10-09DOI: 10.1021/acs.cgd.4c0095410.1021/acs.cgd.4c00954
Fanghao Xuan, Shoubo Wang, Jinkang Ma, Zhaoxin Guo, Kai Xu, Yumeng Zhai, Xiaoyu Feng, Lifeng Cao* and Bing Teng*,
{"title":"Constructing Broadband THz Optical Crystals by Extending the Length of the Alkyl Chain","authors":"Fanghao Xuan, Shoubo Wang, Jinkang Ma, Zhaoxin Guo, Kai Xu, Yumeng Zhai, Xiaoyu Feng, Lifeng Cao* and Bing Teng*, ","doi":"10.1021/acs.cgd.4c0095410.1021/acs.cgd.4c00954","DOIUrl":"https://doi.org/10.1021/acs.cgd.4c00954https://doi.org/10.1021/acs.cgd.4c00954","url":null,"abstract":"<p >Chalcone crystals, known for their significance as molecular nonlinear optical (NLO) materials, exhibit exceptional output properties within the terahertz frequency range. In this study, three chalcone-based crystals, (E)-3-(4-methoxyphenyl)-1-(4-(trifluoromethyl)phenyl) prop-2-en-1-one (TFMOC), (E)-3-(4-ethoxyphenyl)-1-(4-(trifluoromethyl)phenyl) prop-2-en-1-one (TFEOC), and (E)-3-(4-propoxyphenyl)-1-(4-(trifluoromethyl)phenyl) prop-2-en-1-one (TFPOC), were designed by extending the alkyl chains spatial structure and successfully grown. The results indicated that TFEOC and TFPOC were crystallized in noncentrosymmetric space groups. Optimization of the carbon chain (−CH<sub>3</sub>) length effectively altered the molecular arrangement. The molecular stacking arrangement, band gap size, specific atomic contributions to the density of states, and NLO coefficients were analyzed to understand the origin of nonlinearity. The powder second harmonic generation (SHG) efficiencies of TFEOC and TFPOC were 4.32 and 8.72 times greater than KDP, respectively. It is worth noting that both crystals have large bandgaps and wide transparent ranges. Furthermore, THz output from both crystals was obtained for the first time via optical rectification, with the spectral width of the TFPOC crystal, designed by elongating the alkyl chain, slightly exceeding that of trans-4′-(dimethylamino)-<i>N</i>-methyl-4-stilbazolium tosylate (DAST).</p>","PeriodicalId":34,"journal":{"name":"Crystal Growth & Design","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142585677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Crystal Growth & DesignPub Date : 2024-10-09DOI: 10.1021/acs.cgd.4c0110010.1021/acs.cgd.4c01100
Antonis Anastassiades, Dimitris I. Alexandropoulos, Ashlyn Hale, George Christou, Spyros P. Perlepes and Anastasios J. Tasiopoulos*,
{"title":"A [Mn8] Defective Supertetrahedron T3 and Its Dimeric [Mn16] Analogue","authors":"Antonis Anastassiades, Dimitris I. Alexandropoulos, Ashlyn Hale, George Christou, Spyros P. Perlepes and Anastasios J. Tasiopoulos*, ","doi":"10.1021/acs.cgd.4c0110010.1021/acs.cgd.4c01100","DOIUrl":"https://doi.org/10.1021/acs.cgd.4c01100https://doi.org/10.1021/acs.cgd.4c01100","url":null,"abstract":"<p >The initial use of 2-(pyridin-2-yl)propane-1,3-diol (pypdH<sub>2</sub>) in Mn cluster chemistry has afforded two new mixed-valence polynuclear Mn clusters, namely, [Mn<sub>8</sub>Ο<sub>5</sub>(pypd)(hmp)<sub>3</sub>(O<sub>2</sub>CCMe<sub>3</sub>)<sub>8</sub>] (<b>1</b>) and [Mn<sub>16</sub>Ο<sub>10</sub>(N<sub>3</sub>)<sub>2</sub>(pypd)<sub>2</sub>{(py)<sub>2</sub>CO<sub>2</sub>}<sub>4</sub>(O<sub>2</sub>CEt)<sub>12</sub>] (<b>2</b>) (hmp<sup>–</sup> = deprotonated 2-hydroxymethylpyridine; (py)<sub>2</sub>CO<sub>2</sub><sup>2–</sup> = deprotonated gem-diol form of di-2-pyridyl ketone). Compound <b>1</b> features a novel [Mn<sup>III</sup><sub>7</sub>Mn<sup>II</sup>(μ<sub>4</sub>-O)<sub>2</sub>(μ<sub>3</sub>-O)<sub>3</sub>(μ-OR)<sub>5</sub>]<sup>8+</sup> structural core resembling a supertetrahedron T3, lacking two apexes, while complex <b>2</b> has a [Mn<sup>III</sup><sub>14</sub>Mn<sup>II</sup><sub>2</sub>(μ<sub>4</sub>-O)<sub>4</sub>(μ<sub>3</sub>-O)<sub>6</sub>(μ-N<sub>3</sub>)<sub>2</sub>(μ<sub>3</sub>-OR)<sub>2</sub>(μ-OR)<sub>8</sub>]<sup>14+</sup> core consisting of two [Mn<sub>8</sub>] subunits related to <b>1</b> and thus is a dimeric analogue of <b>1</b>. Direct current (dc) magnetic susceptibility studies revealed the presence of dominant antiferromagentic exchange interactions between the Mn ions in complexes <b>1</b> and <b>2</b> and small ground state spin values for both compounds. Overall, this work highlights the capability of polyol-like chelates like pypdH<sub>2</sub> to stabilize high nuclearity 3d metal clusters based on polynuclear building blocks.</p><p >The initial use of 2-(pyridin-2-yl)propane-1,3-diol ligand in Mn cluster chemistry has afforded two new polynuclear [Mn<sub>8</sub>] and [Mn<sub>16</sub>] clusters. They feature novel, structurally related [Mn<sup>III</sup><sub>7</sub>Mn<sup>II</sup>(μ<sub>4</sub>-O)<sub>2</sub>(μ<sub>3</sub>-O)<sub>3</sub>(μ-OR)<sub>5</sub>]<sup>8+</sup> (<b>1</b>) and [Mn<sup>III</sup><sub>14</sub>Mn<sup>II</sup><sub>2</sub>(μ<sub>4</sub>-O)<sub>4</sub>(μ<sub>3</sub>-O)<sub>6</sub>(μ-N<sub>3</sub>)<sub>2</sub>(μ<sub>3</sub>-OR)<sub>2</sub>(μ-OR)<sub>8</sub>]<sup>14+</sup> (<b>2</b>) cores consisting of one and two (connected) defective supertetrahedra T3, lacking two apexes, respectively. Magnetism studies revealed dominant antiferromagentic exchange interactions and small spin ground state values for both compounds.</p>","PeriodicalId":34,"journal":{"name":"Crystal Growth & Design","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.cgd.4c01100","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142585678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Crystal Growth & DesignPub Date : 2024-10-09DOI: 10.1021/acs.cgd.4c0108610.1021/acs.cgd.4c01086
Wenhao Cao, Shouzhi Wang*, Ruixian Yu, Guodong Wang, Yajun Zhu, Yuzhu Wu, Lingshuang Lv, Jiachen Du, Xiangang Xu and Lei Zhang*,
{"title":"Suitable AlN Source Shape for Optimizing Gas Mass Transfer During AlN Crystal Growth","authors":"Wenhao Cao, Shouzhi Wang*, Ruixian Yu, Guodong Wang, Yajun Zhu, Yuzhu Wu, Lingshuang Lv, Jiachen Du, Xiangang Xu and Lei Zhang*, ","doi":"10.1021/acs.cgd.4c0108610.1021/acs.cgd.4c01086","DOIUrl":"https://doi.org/10.1021/acs.cgd.4c01086https://doi.org/10.1021/acs.cgd.4c01086","url":null,"abstract":"<p >The optimization of the gas mass transfer route is particularly critical for the growth of aluminum nitride (AlN) crystals by the physical vapor transport method. With the influence of Steven’s flow and natural convection, the Al vapor returns to the AlN source surface or the low-temperature zone at the wall of the crucible for deposition, which not only affects the subsequent transmission of Al vapor but also the polycrystalline deposition layer is difficult to clean. Therefore, this work investigates the influence of AlN source surface shape for Al vapor transfer efficiency and analyzes the reasons for three AlN source surface shapes leading to different transport paths within the crucible. It is found that the convex surface is favorable for the optimization of Al vapor transport, which can significantly increase the growth rate of the AlN crystal. The growth zone on the convex surface has a higher temperature under the same conditions, and the dislocation density of the AlN crystals appears to be significantly reduced; the growth modes on both convex and concave surfaces have been improved. This work provides a new direction for the quality optimization and expansion growth of AlN crystals.</p>","PeriodicalId":34,"journal":{"name":"Crystal Growth & Design","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142585679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Crystal Growth & DesignPub Date : 2024-10-09DOI: 10.1021/acs.cgd.4c0088710.1021/acs.cgd.4c00887
Mustafa Bookwala, Jiawanjun Shi, Ira S. Buckner, Simon Bates and Peter L. D. Wildfong*,
{"title":"Investigating the Implications of Coexistent Halogen and Hydrogen Bonds on the Physical Stability of Amorphous Solid Dispersions Using Time–Temperature-Transformation Diagrams","authors":"Mustafa Bookwala, Jiawanjun Shi, Ira S. Buckner, Simon Bates and Peter L. D. Wildfong*, ","doi":"10.1021/acs.cgd.4c0088710.1021/acs.cgd.4c00887","DOIUrl":"https://doi.org/10.1021/acs.cgd.4c00887https://doi.org/10.1021/acs.cgd.4c00887","url":null,"abstract":"<p >Solution nuclear magnetic resonance spectroscopy was used to characterize the interaction landscape between polyvinylpyrrolidone vinyl acetate copolymer (PVPVA) and each of the structurally analogous drug molecules bromopropamide, chlorpropamide, and tolbutamide. Upon the addition of bromopropamide to PVPVA, strong downfield shifts for the hydrogen-bond donors and the carbon adjacent to the bromine confirmed strong, adhesive, coexistent hydrogen (H–) and halogen (X–) bonding interactions. Comparison of H-bonding strength with PVPVA for chlorpropamide and tolbutamide revealed that they were similar; however, the interaction landscape was stronger for chlorpropamide-PVPVA, owing to the formation of additional coexistent X-bonds. Recrystallization onset times (<i>t</i><sub>crys</sub>) were identified using simultaneous X-ray diffraction–differential scanning calorimetry (XRD-DSC) at seven isothermal conditions, and the phase boundaries were built using increasing PVPVA concentrations. The implications of the different interaction landscapes were evaluated with respect to the physical stability of drug-polymer systems using time–temperature-transformation (TTT) diagrams. Across all compositions, bromopropamide had the highest <i>t</i><sub>crys</sub>, followed by chlorpropamide and tolbutamide at lower isothermal temperatures. Conditions at and above the “nose” temperature led to a trend-reversal, resulting in bromopropamide having the lowest <i>t</i><sub>crys</sub>. Identification of the polymorph that grew from the melt using simultaneous XRD-DSC revealed that the unit cells for all analogues were isostructural; bromopropamide had the highest thermal properties, and consequently the highest crystallization tendency.</p><p >The physical stability of drug-polymer systems was related to their respective interaction landscapes, and evaluated using time–temperature-transformation (TTT) diagrams.</p>","PeriodicalId":34,"journal":{"name":"Crystal Growth & Design","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.cgd.4c00887","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142585680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Assembly of Solvent-Incorporated Rod Secondary Building Units to Ultramicroporous Metal–Organic Frameworks for Acetylene Purification","authors":"Zitong Song, Xia Zhou, Kangli Zhang, Danyi Shao, Jiantang Li* and Dongmei Wang*, ","doi":"10.1021/acs.cgd.4c0088310.1021/acs.cgd.4c00883","DOIUrl":"https://doi.org/10.1021/acs.cgd.4c00883https://doi.org/10.1021/acs.cgd.4c00883","url":null,"abstract":"<p >The process of industrial purification of acetylene (C<sub>2</sub>H<sub>2</sub>) is crucial yet challenging due to the similarities in physical properties and kinetic molecular sizes between C<sub>2</sub>H<sub>2</sub> and the impurity gases generated during its production. Conventional distillation processes frequently result in significant energy waste, highlighting the urgent need for more efficient separation techniques. Metal–organic frameworks (MOFs), as a class of porous physical adsorbents, have demonstrated remarkable success in the separation and purification of light hydrocarbons. By applying the reticular chemistry approach, we have rationally designed and synthesized two isoreticular compounds (named CoTPTA and MnTPTA) with novel low-valent {M–O–M} rod secondary building units (SBUs) based on the tetracarboxylic acid ligand H<sub>4</sub>TPTA ([1,1′:3′,1″-terphenyl]-4,4′,4″,6′-tetracarboxylic acid). Both compounds displayed outstanding chemical stability when exposed to various organic solvents. In addition, a series of gas adsorption experiments demonstrated that they both have good C<sub>2</sub>H<sub>2</sub> purification ability. The adsorption selectivity was subsequently verified by ideal adsorption solution theory (IAST), where the selectivity of CoTPTA for C<sub>2</sub>H<sub>2</sub>/CO<sub>2</sub> was 6.65 (v/v = 0.5:0.5).</p>","PeriodicalId":34,"journal":{"name":"Crystal Growth & Design","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142585765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Crystal Growth & DesignPub Date : 2024-10-09DOI: 10.1021/acs.cgd.4c0095810.1021/acs.cgd.4c00958
Lizabeth Quigley, Jianan Shen, Juanjuan Lu, Claire A. Mihalko, James P. Barnard, Yizhi Zhang, Nirali A. Bhatt, Katrina Evancho, Raktim Sarma, Aleem Siddiqui and Haiyan Wang*,
{"title":"Target Configuration Effect on Microstructures and Properties of Vertically Aligned Nanocomposites","authors":"Lizabeth Quigley, Jianan Shen, Juanjuan Lu, Claire A. Mihalko, James P. Barnard, Yizhi Zhang, Nirali A. Bhatt, Katrina Evancho, Raktim Sarma, Aleem Siddiqui and Haiyan Wang*, ","doi":"10.1021/acs.cgd.4c0095810.1021/acs.cgd.4c00958","DOIUrl":"https://doi.org/10.1021/acs.cgd.4c00958https://doi.org/10.1021/acs.cgd.4c00958","url":null,"abstract":"<p >Vertically aligned nanocomposites (VANs) are unique thin films with vertical nanostructures embedded in a matrix material, allowing for the integration of two distinct materials. These nanocomposites offer novel combined physical properties, such as nanocomposite-based multiferroics and strongly coupled physical properties, such as magneto-optic coupling. Much work has been conducted in exploring different two-phase combinations and various processing conditions to achieve novel tunable properties that cannot be obtained by any single-phase material alone. In this work, the target configuration effects are explored for the growth of LaFeO<sub>3</sub>–CoNi<sub>2</sub>O<sub>4</sub> VANs. Both mixed and pie-shaped targets are utilized to compare the target configuration effects on the phase separation, morphology tuning, and their resulting physical properties, including optical and magnetic properties. This work suggests that the target configuration is another important parameter for achieving the desired VAN morphology and can be used to design different two-phase VANs with tailorable properties.</p>","PeriodicalId":34,"journal":{"name":"Crystal Growth & Design","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142585682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Crystal Growth & DesignPub Date : 2024-10-09DOI: 10.1021/acs.cgd.4c0103010.1021/acs.cgd.4c01030
Yanqi Xu, Anders Reinholdt, Oleg N. Antzutkin, Maria Forsyth, Patrik Johansson* and Faiz Ullah Shah*,
{"title":"Ionic Interaction Effects on the Structure and Dynamics of Orthoborate Ionic Materials","authors":"Yanqi Xu, Anders Reinholdt, Oleg N. Antzutkin, Maria Forsyth, Patrik Johansson* and Faiz Ullah Shah*, ","doi":"10.1021/acs.cgd.4c0103010.1021/acs.cgd.4c01030","DOIUrl":"https://doi.org/10.1021/acs.cgd.4c01030https://doi.org/10.1021/acs.cgd.4c01030","url":null,"abstract":"<p >A series of orthoborate-based ionic materials of bis(glycolato)borate ([BGB]) and bis(ethylene-1,2-dioxy)borate anions ([BEDB]) coupled with tetrabutylphosphonium ([P<sub>4444</sub>]) and tetrabutylammonium ([N<sub>4444</sub>]) cations have been synthesized, and their physicochemical properties are characterized. The ionic materials based on the most popular orthoborate anion, bis(oxalato)borate anion ([BOB]), which contains four carbonyl groups, are all liquid at ambient temperature, while the bis(glycolato)borate ([BGB]) anion, with two carbonyl groups, and the bis(ethylene-1,2-dioxy)borate ([BEDB]) anion, without carbonyl groups, render solids at ambient temperature. The ionic materials based on the [BGB] anion display the highest decomposition temperatures, and those based on the BEDB anion are the lowest. The [P<sub>4444</sub>][BGB], [P<sub>4444</sub>][BEDB], and [N<sub>4444</sub>][BEDB] salts feature significantly wider plastic phase I temperature ranges than their analogues. FTIR spectroscopy, multinuclear (<sup>15</sup>N, <sup>31</sup>P, <sup>13</sup>C, and <sup>11</sup>B) solid-state NMR spectroscopy, and single-crystal X-ray diffraction were all used to unveil the ionic interactions and structural features, which display weaker ionic interactions for [BEDB] compared to [BGB] when bearing the same cation and present relatively higher crystallinity of [P<sub>4444</sub>][BGB] among the ionic materials.</p><p >A series of orthoborate-based organic ionic materials have been synthesized, rendering ionic liquids, plastic crystals and solids, and their ionic interactions and structural features together with physicochemical properties are unveiled by employing multinuclear solid-state NMR spectroscopy, FTIR, and single-crystal X-ray diffraction.</p>","PeriodicalId":34,"journal":{"name":"Crystal Growth & Design","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.cgd.4c01030","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142585625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Crystal Growth & DesignPub Date : 2024-10-09DOI: 10.1021/acs.cgd.4c0110310.1021/acs.cgd.4c01103
Gowri M. Satish, Christina A. Taylor, Stephen J. Cowling, Richard J. Gammons, Adrian C. Whitwood, Jyoti Swarup Thakur, Omkar Dash, Kapil S. Ingle, Susanta K. Nayak* and Duncan W. Bruce*,
{"title":"Re-evaluation of the Thermal Behavior of 2:1 Halogen-Bonded Complexes Formed between 4-Alkoxycyanobiphenyls and 1,4-Diiodotetrafluorobenzene","authors":"Gowri M. Satish, Christina A. Taylor, Stephen J. Cowling, Richard J. Gammons, Adrian C. Whitwood, Jyoti Swarup Thakur, Omkar Dash, Kapil S. Ingle, Susanta K. Nayak* and Duncan W. Bruce*, ","doi":"10.1021/acs.cgd.4c0110310.1021/acs.cgd.4c01103","DOIUrl":"https://doi.org/10.1021/acs.cgd.4c01103https://doi.org/10.1021/acs.cgd.4c01103","url":null,"abstract":"<p >Three representative examples of 2:1 complexes formed between 4-alkoxycyanobiphenyls and 1,4-diiodotetrafluorobenzene have been reprepared, and single crystal data were obtained for all (including one redetermination). Their thermal behavior has been examined in detail using polarized optical microscopy, differential scanning calorimetry, and small-angle X-ray scattering, with no evidence for liquid crystallinity being found.</p>","PeriodicalId":34,"journal":{"name":"Crystal Growth & Design","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.cgd.4c01103","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142585763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Phenothiazine-Based Organic Single Crystal with Flexibility, Piezochromism, and Fluorescent Waveguide Properties","authors":"Xiumian Cao, Wenquan Wang*, Jiang Peng, Aisen Li*, Qian Li, Weiqing Xu and Shuping Xu*, ","doi":"10.1021/acs.cgd.4c0078910.1021/acs.cgd.4c00789","DOIUrl":"https://doi.org/10.1021/acs.cgd.4c00789https://doi.org/10.1021/acs.cgd.4c00789","url":null,"abstract":"<p >The development of organic single crystals with combined properties, including flexibility, piezochromism, and optical waveguiding, holds paramount importance for advancing new optoelectronic devices. Herein, a long, needle-shaped organic plastic crystal based on phenothiazine was fabricated, and it emits bright yellow-green fluorescence under ultraviolet light excitation. Investigations into its piezochromism property <i>via</i> a diamond anvil cell revealed that this phenothiazine-based material performed a pressure-induced emission enhancement effect under relatively low pressures (0–0.6 GPa). Furthermore, optical waveguide tests were conducted on the crystal in both linear and plastic deformation states, and the results revealed no significant attenuation of its light transmission properties. This phenothiazine-based crystal exhibits flexibility, piezochromism, and optical waveguiding properties, which will be valuable as a sensing material for developing integrated pressure sensors.</p>","PeriodicalId":34,"journal":{"name":"Crystal Growth & Design","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142585635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}