X-ray Structure Analysis Online最新文献

{"title":"Synthesis and Crystal Structure of (μ-Acetato)bis(μ-Alkoxo)dicobalt(II, III) Complex with an Unsymmetric Dinucleating Ligand","authors":"Naho Shinde, Ryunosuke Handa, H. Furutachi, Y. Sakata, Shigehisa Akine, S. Fujinami, Masatatsu Suzuki","doi":"10.2116/XRAYSTRUCT.37.13","DOIUrl":"https://doi.org/10.2116/XRAYSTRUCT.37.13","url":null,"abstract":"The bimetallic active centers of metalloproteins exhibit versatile roles; model studies using simple dinuclear metal complexes are important in order to gain insight into the biological functions of such bimetallic cores.1–5 The end-off type dinucleating ligands, having a phenolic and alcoholic oxygen as an endogenous bridge, have been used for modeling carboxylate-bridged bimetallic active sites of metalloproteins.1–5 Previously, we reported on the synthesis and characterization of a peroxo complex, [Co2(tpdb)(O2)(CH3CO2)], and a mixed-valence complex, [FeFe(tpdb)(C6H5CO2)2], having an unsymmetric dinucleating ligand with pyridyl groups (tpdb) as models for hemerythrin and purple acid phosphatase. In this paper, we report on the crystal structure of a dicobalt(II, III) mixed-valence complex, [CoII Co(tpdb)(CH3CO2)(CH3O)](ClO4)2·0.75CH3OH· 0.25CH3CN (1) (Fig. 1), which was obtained by an oxidative degradation of [Co2(tpdb)(CH3CO2)] in methanol/acetonitrile at ambient temperature under air. A mixture of Co(ClO4)2·6H2O (0.366 g, 1.0 mmol) and Htpdb (0.235 g, 0.5 mmol) in methanol/acetonitrile (3:1, 12 mL) was added to a methanol solution (5 mL) containing CH3CO2Na·3H2O (0.07 g, 0.5 mmol) and triethylamine (69 μL, 0.5 mmol) to give a dark-brown solution. Oxygen gas was bubbled for 5 min into the solution. The resulting dark-brown solution was allowed to stand for several weeks at ambient temperature under air to give single crystals of [CoCo(tpdb)(CH3CO2)(CH3O)](ClO4)2· 0.75CH3OH· 0.25CH3CN (1) suitable for X-ray crystallography. Yield: 0.28 g, 63 % (Anal. Found: C, 41.20; H, 4.37; N, 9.28%. Calcd for [CoCo(tpdb)(CH3CO2)(CH3O)](ClO4)2·1.5H2O, C31H40Cl2Co2N6O13.5: C, 41.30; H, 4.47; N, 9.32%.). It was picked up from the solution by a loop on a hand-made cold copper plate mounted inside a liquid N2 Dewar vessel at –80°C; the loop was mounted on the diffractometer. X-ray diffraction measurements were made on a Bruker D8 VENTURE diffractometer (Cu Kα radiation) at 90 K. The structure was solved by a direct method (SHELXT)8 and expanded using a Fourier technique. The structure was refined by a full-matrix least-squares method by using SHELXL 20149 (Yadokari-XG).10 All non-hydrogen atoms were refined with anisotropic displacement parameters. The hydrogen atoms were included using a riding model. For the disordered anion and solvent molecules, occupancy factors were refined using distance/ADP restraints. The crystal data are summarized in Table 1. The X-ray crystallography of 1 reveals that the asymmetric unit contains a complex cation [CoCo(tpdb)(CH3CO2) (CH3O)], two ClO4, and 0.75 methanol and 0.25 acetonitrile molecule (Fig. S1). An ORTEP drawing of the complex cation, [CoCo(tpdb)(CH3CO2)(CH3O)] of 1, is shown in Fig. 2. Selected bond distances (Å) and angle (°) are given in Table 2. The complex cation of 1 has distinct cobalt centers that are triply bridged by alkoxo oxygens of tpdp and methoxo, and acetate group as found for closely related dicobalt(I","PeriodicalId":23922,"journal":{"name":"X-ray Structure Analysis Online","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2021-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44155383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Crystal Structure of [11,14,17,110,51,54,57,510-Octaaza-1,5(1,4)-dicyclododecana-3,7(1,3)-dibenzenacyclooctaphane]zinc(II) tetrakis(nitrate), [m,m-bis(ZnII-cyclen)](NO3)4","authors":"Yoshimi Ichimaru, Wanchun Jin, Y. Yamaguchi, K. Sugiura, Masanori Imai, H. Kurosaki, H. Fujioka, T. Koike, Yuhzo Hieda, Koichi Kato","doi":"10.2116/XRAYSTRUCT.37.15","DOIUrl":"https://doi.org/10.2116/XRAYSTRUCT.37.15","url":null,"abstract":"1,4,7,10-Tetraazacyclododecane, cyclen, is a macrocyclic (12-membered) tetraamine, and its ZnII complexes have been utilized as biological probes.1 Fujioka et al. reported a ZnII complex of the dinuclear cyclen derivative, m,m-bis(ZnIIcyclen), for recognizing the malonate dianion (CCDC744746).2 Although the crystal structure of a macrocyclic dimer for malonate/m,m-bis(ZnII-cyclen) complex of 1:1 stoichiometry has been revealed, the monomer crystal structure of its monomer is not reported. The malonate bridges may affect the structure in the macrocyclic dimer. Here, to elucidate the structural difference between the monomer and the malonate-bridged dimer, we describe the monomer crystal structure of m,mbis(ZnII-cyclen) comprising a nitrate. The systematic name of m,m-bis(ZnII-cyclen) is [11,14,17,110,51, 54,57,510-octaaza-1,5(1,4)-dicyclododecana-3,7(1,3)-dibenzenacyclooctaphane]zinc(II)tetrakis(nitrate), and the chemical structure is provided in Fig. 1. The complex was prepared according to a method previously reported by Fujioka et al.2 Crystals suitable for X-ray structure analysis were obtained upon recrystallization with water. A preliminary examination was performed, and data were collected on a Rigaku XtaLAB Synergy-i diffractometer (Rigaku Co., Tokyo, Japan) using graphite-monochromated Cu-Kα radiation at 93.15 K. Crystal data and details regarding data collection are provided in Table 1. The initial structure was solved using an intrinsic phasing method with SHELXT-2018/3.3 All non-hydrogen atoms were refined using the full-matrix least-squares method on F2 by utilizing SHEXL-2018/3.4 All hydrogen atoms were located using a geometrical calculation, and were not refined. All calculations were performed using Olex2 crystallographic software.5 Crystallographic data were deposited to the Cambridge Crystallographic Data Center (CCDC 2041868). An ORTEP drawing of the cationic part is shown in Fig. 2, and selected bond lengths and angles are provided in Table 2. The title complex is related by a crystallographic two-fold axis along the a-axis at the center of the cavity of m,m-bis(ZnIIcyclen). The coordination geometry around the central ZnII atom, Zn1, is a distorted square pyramidal with τ 6 = 0.009 [τ = (β – α)/60, where β = N1–Zn1–N3, 137.86(10)° and α = N2– Zn1–N4i, 137.30(10)°; for an ideal square pyramid, τ = 0, whereas, for an ideal trigonal pyramid, τ = 1]. Four nitrogen atoms (N1, N2, N3, and N4i) from the cyclen unit comprise the basal plane. The apical position is occupied by an oxygen atom, O1, of the nitrate anion. Of the four nitrates, two are coordinated to the respective ZnII, one is hydrogen bonded to N3–H3, and the other is located above the cavity of m,m-bis(ZnII-cyclen). 2021 © The Japan Society for Analytical Chemistry","PeriodicalId":23922,"journal":{"name":"X-ray Structure Analysis Online","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2021-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42521284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Crystal Structure of a Benzyltriethylammonium Bromide Complex with rac-1,1′-Binaphthalene-2,2′-diol: The Inclusion of an Arylammonium Salt by an Assembly of Binaphthol Groups","authors":"E. Marfo-owusu, A. Thompson","doi":"10.2116/XRAYSTRUCT.37.7","DOIUrl":"https://doi.org/10.2116/XRAYSTRUCT.37.7","url":null,"abstract":"The concepts of crystal engineering and molecular recognition are exceedingly similar; both fields are concerned with the manipulation of intermolecular interactions in the architecture of supramolecular assemblies. In such studies, both strong and weak interactions are considered both independently and jointly concerning the molecular design strategy.1 Recently, many efforts have been focused on controlling H-bonds in supramolecular and crystal structures of complexes involving phenol derivatives and quaternary alkyl ammonium salts to achieve molecular recognition phenomena.2 This knowledge has had pharmaceutical significance, as well as applications in separation science and biomembrane studies.3 Our search of the Cambridge Structure Database Ver. 5.34, 2013, recently revealed to us that no studies have been conducted concerning molecular recognition between a quaternary arylammonium halide and a phenol derivative since such a study could reveal the suitability of quaternary arylammonium halides that bind with phenol derivatives, as observed in quaternary alkylammonium halides, as well as to employ this knowledge into crystal engineering and supramolecular studies. Gratifingly, our group found that benzyltrimethylammonium chloride, (hereafter, BTMAC) binds with rac-1,1′-binaphthalene-2,2′-diol (hereafter, BNP) to form BTMAC/BNP complex4 in a molecular recognition phenomenom. This revealed how the benzyl group influences a crystal packing mode favorable for the generation of C–H···π, C–H···O, and O–H···Cl intermolecular interactions, and indicating the relevance of these kind of weak H–bonds (C–H···π, C–H···O) in the binding phenomena. Thus, we also found it is important to investigate the binding phenomena between benzyltriethylammonium bromide (hereafter, BTEAB) and BNP through crystal structure studies in order to understand how alteration of the halide anion from Cl– to Br–, as well as to change in the trialkyl group from trimethyl to triethyl group on the ammonium cation could also enhance similar crystal packing modes and weak interactions through the influence of the benzyl group or not. Thus, the revelations from the crystal structure studies of BTEAB/BNP complex are discussed in this manuscript. Suitable crystals for X-ray diffraction studies were obtained within 8 days by slow evaporation of a warmed acetone/ ethylacetate (20 mL) mixture in which BTEAB (0.27 g, 1 mmol), and BNP (0.29 g, 1 mmol) were dissolved. Crystal 2021 © The Japan Society for Analytical Chemistry","PeriodicalId":23922,"journal":{"name":"X-ray Structure Analysis Online","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2021-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42997884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Crystal Structure of μ-Oxido-μ-phenolato-bridged Dinuclear Manganese(III) Complex of Schiff-base Ligand with Bromido Coordination","authors":"M. Mikuriya, Sayuri Ono, Yoshiki Koyama, R. Mitsuhashi, M. Tsuboi","doi":"10.2116/XRAYSTRUCT.37.9","DOIUrl":"https://doi.org/10.2116/XRAYSTRUCT.37.9","url":null,"abstract":"C7, N1, O2, O3, and O7 atoms to form a dinuclear manganese molecule A dinuclear manganese(III) complex with 2-(5-nitro-2-hydroxyphenyl)-1,3-bis(2-(5-nitro-2-hydroxybenzylideneamino)-ethyl)imidazolidine (H 3 L NO2 ) was synthesized. The crystal structure was determined by the single-crystal X-ray diffraction method at 90 K. The complex crystallized as [(C 2 H 5 ) 3 NH][Mn 2 ( μ -L NO2 )( μ -O)Br 2 ]·2THF in the orthorhombic space group Pnma with a = 14.890(2), b = 20.903(3), c = 14.7765(19)Å, V = 4599.3(11)Å 3 , D calcd = 1.621 g/cm 3 , Z = 4. The R 1 [ I > 2 σ ( I )] and wR 2 (all data) values are 0.0539 and 0.1260, respectively, for all 5416 independent reflections. The two manganese(III) atoms are bridged by a phenolato-oxygen atom of L NO23– and a μ -oxido-oxygen atom, where each manganese(III) atom is further coordinated by phenolato-oxygen, imino- and imidazolidine-nitrogen atoms of L NO2","PeriodicalId":23922,"journal":{"name":"X-ray Structure Analysis Online","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2021-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42667355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Crystal Structure of a Benzyltrimethylammonium Chloride Complex with rac-1,1′-Bi-2-naphthol: The Generation of Weak Interactions by the Influence of a Benzyl Group","authors":"E. Marfo-owusu, A. Thompson","doi":"10.2116/XRAYSTRUCT.37.1","DOIUrl":"https://doi.org/10.2116/XRAYSTRUCT.37.1","url":null,"abstract":"Weak intermolecular non-covalent interactions between molecules are now being exploited for the synthesis of large supramolecular aggregates.1 These weak forces guarantee the structural and functional integrity of supramolecular systems. The supramolecular and crystal engineering approach have become popular due to its pharmaceutical significance, as well as its application in separation science, and biomembrane studies. Typically, many supramolecular chemists and crystal engineers have extensively reported on molecular recognition studies between phenol derivatives and quaternary alkyl ammonium salts using an inclusion crystallization technique,2,3 as well as a crystal engineering approach that involves the manipulation of hydrogen bonding patterns and packing fashions.4 Such studies have been utilized in employing knowledge concerning the separation of phenol derivatives in both chemical and pharmaceutical industries. Surprisingly, as per our search of the Cambridge Structure Database Ver. 5.34, 2013, no studies have been conducted on molecular recognition studies between a quaternary arylammonium halide (typically, benzyltrimethylammonium chloride, hereafter, BTMAC) with a phenol derivative (typically, rac-1,1′-bi-2-naphthol, hereafter, BNP), since such a study may reveal how the rigid aryl (benzyl) group may be utilized to influence the hydrogen bonding directionality of the alkyl {e.g. methyl (CH3)} groups of the ammonium cation onto a naphthol plane of BNP (non planar), and the enhance generation of weak C–H···π, and C–H···O interactions, as well as to know whether BTMAC is suitable for binding with phenol derivatives in a molecular recognition phenomena. Thus, this manuscript describes the aforementioned interest through studying the crystal structure of the BTMAC/ BNP complex. Crystals suitable for X-ray diffraction studies were obtained within five days by the slow evaporation of a warmed acetone/ ethylacetate (20 mL) mixture in which BTMAC (0.19 g, 1 mmol), and BNP (0.29 g, 1 mmol) were dissolved. Crystal data and data collection details are listed in Table 1. Data collection and cell refinement were carried out using DENZOSMN. The structure solution was carried out with direct methods using the program superflip within the CRYSTALS software suite, and refined by a full-matrix least-squares methods based on F2. All H atoms were located in electron density difference maps. The H atoms were positioned with idealized geometry with C–H = 0.93 – 0.99 Å, and O–H = 2021 © The Japan Society for Analytical Chemistry","PeriodicalId":23922,"journal":{"name":"X-ray Structure Analysis Online","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2021-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42153315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Crystal Structure of a μ-Phenolato-μ-oxido-bridged Dinuclear Manganese(III) Complex with Dinucleating Schiff-base Ligand Having Three Phenolate Groups","authors":"M. Mikuriya, Sayuri Ono, Yoshiki Koyama, R. Mitsuhashi, M. Tsuboi","doi":"10.2116/XRAYSTRUCT.37.3","DOIUrl":"https://doi.org/10.2116/XRAYSTRUCT.37.3","url":null,"abstract":"A μ -phenolato- μ -oxido-bridged dinuclear manganese(III) complex with 2-(5-nitro-2-hydroxyphenyl)-1,3-bis(2-(5-nitro-2-hydroxybenzylideneamino)ethyl)imidazolidine (H 3 L NO2 ) was synthesized. The crystal structure was determined by the single-crystal X-ray diffraction method at 90 K. The complex crystallized as [(C 2 H 5 ) 3 NH][Mn 2 ( μ -L NO2 )( μ -O)Cl 2 ]·2THF in the orthorhombic space group Pnma with a = 15.052(3), b = 20.449(4), c = 14.700(3)Å, V = 4524.5(16)Å 3 , D calcd = 1.518 g/cm 3 , Z = 4. The R 1 [ I > 2 σ ( I )] and wR 2 (all data) values are 0.0713 and 0.1700, respectively, for all 5336 independent reflections. The two manganese(III) atoms are bridged by a phenolato-oxygen atom of L NO23– and a μ -oxido-oxygen atom, where each manganese(III) atom is further coordinated by phenolato-oxygen, imino- and imidazolidine-nitrogen atoms of L NO23– in a meridional fashion and a chlorido ligand to form a distorted octahedral geometry.","PeriodicalId":23922,"journal":{"name":"X-ray Structure Analysis Online","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2021-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48866486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Crystal Structure of (Z)-4-[4-Fluorophenyl]thiosemicarbazide4","authors":"U. Osman, Sharmili Silvarajoo, I. Bhat, M. Razali, Mohd Zul Helmi Rozaini, T. B. Ravoof","doi":"10.2116/xraystruct.36.49","DOIUrl":"https://doi.org/10.2116/xraystruct.36.49","url":null,"abstract":"The present compound, namely ( Z )-4-[4-fluorophenyl]thiosemicarbazide, crystallized in a monoclinic space group, P 2 1 / c , with cell parameters a = 12.1056(8)Å, b = 5.5177(4)Å, c = 12.5617(8)Å, β = 90.063(2) ° , V = 839.06(10)Å 3 , and Z = 4. The structure was solved and the data was refined to reach R and wR indices of 0.0946 and 0.1377, respectively. In the crystal, each molecule was linked to the next molecule by two N–H···S intermolecular hydrogen bonds.","PeriodicalId":23922,"journal":{"name":"X-ray Structure Analysis Online","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2020-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44213278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Crystal Structure of rac-4-Iodo-5-methoxy[2.2]metacylophane; A Rare Example of a Halogenated Metacyclophane with Planar Chirality","authors":"Marco Blangetti, D. O’Shea","doi":"10.2116/xraystruct.36.45","DOIUrl":"https://doi.org/10.2116/xraystruct.36.45","url":null,"abstract":"A racemic mixture of planar chiral 4-iodo-5-methoxy[2.2]metacylophane ( 2 ) was synthesized by the low-temperature directed ortho aryl metalation of 5-methoxy[2.2]metacyclophane ( 1 ) and subsequent in situ reaction with iodine. The crystal structure was determined by the single-crystal X-ray diffraction method at 100 K. The compound crystallized in an orthorhombic system and was characterized as: Pca 2 1 , a = 13.5690(2), b = 14.2212(2), c = 7.5004(1)Å, Z = 4, V = 1447.33(4)Å 3 . The crystal structure was solved by direct methods and refined by full-matrix least-squares","PeriodicalId":23922,"journal":{"name":"X-ray Structure Analysis Online","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2020-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46173223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Crystal Structure of 5-Methoxyindirubin 3′-Oxime","authors":"N. Nakamura, Yoshimi Ichimaru, Koichi Kato, M. Sano, H. Kurosaki, K. Hayashi, S. Miyairi","doi":"10.2116/xraystruct.36.47","DOIUrl":"https://doi.org/10.2116/xraystruct.36.47","url":null,"abstract":"HyPix3000 diffractometer using graphite monochromated Cu- K α radiation K. crystal and experimental data Table The initial structure was solved by an intrinsic phasing method with SHELXT-2015. 8 All non-hydrogen atoms were refined using a full-matrix least-squares method on an F 2 utilizing SHELXL-2015. 9 All calculations were performed using Olex2 crystallographic software. 10 The residual electron density peaks, which may be from an EtOH molecule, were observed in the void area. The oxygen atoms in the EtOH molecules were disordered into four positions (O A–D ) with occupation factors of 0.333 (O A and O C ) The structure of 5-methoxyindirubin 3 ′ -oxime was determined by a single-crystal X-ray diffraction method at 93.15 K. The compound was crystallized in a monoclinic system, and was characterized as thus: P 2 1 / c , a = 16.0352(4)Å, b = 5.55140(10)Å, c = 17.2061(4)Å, β = 100.324(3) ° , Z = 4, and V = 1506.85(6)Å 3 . The crystal structure was solved by direct methods and refined by full-matrix least-squares on an F 2 to final values of R 1 = 0.0524 ( I > 2 σ ( I )) and wR 2 = 0.1411 (all data). 5-Methoxyindirubin","PeriodicalId":23922,"journal":{"name":"X-ray Structure Analysis Online","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2020-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43201938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Crystal Structure of [3-(1,4,7,10-Tetraazacyclododecan-1-yl)propan-1-amine]zinc(II) Bis(perchlorate), [ZnIIL](ClO4)2","authors":"Yoshimi Ichimaru, Masanori Imai, H. Fujioka, Yuhzo Hieda, T. Koike, H. Kurosaki, Koichi Kato","doi":"10.2116/xraystruct.36.43","DOIUrl":"https://doi.org/10.2116/xraystruct.36.43","url":null,"abstract":"","PeriodicalId":23922,"journal":{"name":"X-ray Structure Analysis Online","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2020-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44508387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}