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The Contrasting Role of Water and Acid Within Organic Phase Amphiphile Aggregation 水和酸在有机相两亲体聚集中的对比作用
ChemRxiv : the preprint server for chemistry Pub Date : 2021-09-28 DOI: 10.33774/chemrxiv-2021-cd724
B. Sadhu, A. Clark
{"title":"The Contrasting Role of Water and Acid Within Organic Phase Amphiphile Aggregation","authors":"B. Sadhu, A. Clark","doi":"10.33774/chemrxiv-2021-cd724","DOIUrl":"https://doi.org/10.33774/chemrxiv-2021-cd724","url":null,"abstract":"The self-assembly of amphiphiles is often modified by the presence of co-solutes and significant study has examined this behavior in aqueous systems. Much less is known about the role of polar co-solutes upon amphiphile aggregation within non-polar media, however such conditions are relevant to a variety of industrial processes - not the least of which are separations systems like those found in liquid-liquid extraction (LLE). Therein, surface active amphiphiles extract water, acid, and other solutes of interest. Intriguing increases to amphiphile aggregates have been experimentally observed upon water and acid extraction, however a myriad of competitive intermolecular interactions have thus far prevented a fundamental understanding of the individual and dual role of these solutes upon amphiphile self-assembly. Toward this end, this work employs classical molecular dynamics and graph theory analyses to deconstruct the individual affects of water and nitric acid upon the self-assembly of N,N,N',N'-tetraoctyl-3-oxapentanediamide (TODGA), a prevalent amphiphile extractant used in metal ion separations. In the absence of acid, and at low water concentration, H2O is found to promote local dimer and trimer formation of TODGA, however as [H2O]org increases, the preferential solvation of water with itself causes the formation of large water clusters that serve to link large TODGA clusters on the periphery (causing extended aggregation). Addition of HNO3 to the humid solutions disrupts the water hydrogen bond network and inhibits the formation of large water clusters - thus preventing extended aggregation behavior. We rationalize the prior experimental observations as being attributed primarily to the role of water in the self-assembly of TODGA rather than co-extracted HNO3, thus providing valuable new insight into the means by which extractant aggregation can be tuned within LLE processes. In addition, this work differentiates the role of polar solutes upon amphiphile self-assembly via their individual hydrogen bonding capabilities and competitive interactions that disrupt preferred solvation environments.","PeriodicalId":72565,"journal":{"name":"ChemRxiv : the preprint server for chemistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41504083","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}
引用次数: 0
High precision evaluation of the combustion enthalpy by ab-intio computations 用ab intio计算高精度评价燃烧焓
ChemRxiv : the preprint server for chemistry Pub Date : 2021-09-28 DOI: 10.33774/chemrxiv-2021-fvcph
A. Alibakhshi
{"title":"High precision evaluation of the combustion enthalpy by ab-intio computations","authors":"A. Alibakhshi","doi":"10.33774/chemrxiv-2021-fvcph","DOIUrl":"https://doi.org/10.33774/chemrxiv-2021-fvcph","url":null,"abstract":"Accurate evaluation of combustion enthalpy is of high scientific and industrial importance. Although via ab-initio computation of heat of reactions, as one of the promising and well-established approaches in computational chemistry, this goal should in principle be achievable, examples of reliable and precise evaluation of heat of combustion by ab-initio methods has surprisingly not yet been reported. A handful of works carried out for this purpose report significant inconsistencies between the ab-initio evaluated and experimentally determined combustion enthalpies and suggest empirical corrections to improve the accuracy of predicted data. With this background, the main aims of the present study is to investigate the reasons behind those reported inconsistencies and propose guidelines for highly accurate evaluation of combustion enthalpy via ab-initio computations. Through the provided guidelines, the most accurate results ever reported, with average absolute deviation, mean unsigned error and correlation coefficient of 1.556 kJ/mole, 0.072% and 0.99999, respectively, is achieved for theoretically computed combustion enthalpies of 40 studied hydrocarbons.","PeriodicalId":72565,"journal":{"name":"ChemRxiv : the preprint server for chemistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44036802","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}
引用次数: 1
Modified Born-Lande Equation to calculate Lattice Energy in a theoretical approach 用改进的Born-Lande方程计算晶格能的理论方法
ChemRxiv : the preprint server for chemistry Pub Date : 2021-09-27 DOI: 10.33774/chemrxiv-2021-z2n68
Aakash Gupta, D. Jana
{"title":"Modified Born-Lande Equation to calculate Lattice Energy in a theoretical approach","authors":"Aakash Gupta, D. Jana","doi":"10.33774/chemrxiv-2021-z2n68","DOIUrl":"https://doi.org/10.33774/chemrxiv-2021-z2n68","url":null,"abstract":"Defects in ionic solid are very much common, which is increased with the rise in temperature. It causes the change in the value of many physical properties and varieties of physical parameters and the Lattice Energy is one such parameter to control the physical properties of the crystals. Considering the loss of ions from lattice points as random, the examination of each of the defects individually is going to be unpredictable, thus leading to almost nonattainment of the correct crystal structure with the theoretical calculations applying for available models. Here, in this present work, we have used some statistical methods and probabilistic approximation to introduce a novel idea of calculating the Madelung constant, and then Lattice Energy analytically. To make the understanding more lucid, we have taken one of the very common crystals, very popular in the crystallographic community, NaCl crystal having 6:6 co-ordination number, for which a significant number of Schottky defects are observed. During this study, we are bound to assume the random distribution of defects as Poisson distribution due to the fact that the number of defects is very less with respect to the total numbers of lattice points present in the crystal to calculate the Madelung Constant.","PeriodicalId":72565,"journal":{"name":"ChemRxiv : the preprint server for chemistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42802639","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}
引用次数: 0
A molecular (NCS2)Ni(II) electrocatalyst resembles [NiFe]hydrogenase pathway for H2 evolution 一种分子(NCS2)Ni(II)电催化剂类似于[NiFe]氢化酶的氢演化途径
ChemRxiv : the preprint server for chemistry Pub Date : 2021-09-27 DOI: 10.33774/chemrxiv-2021-1208w-v2
Soumalya Sinha, Giang N Tran, Hanah Na, Liviu M. Mirica
{"title":"A molecular (NCS2)Ni(II) electrocatalyst resembles [NiFe]hydrogenase pathway for H2 evolution","authors":"Soumalya Sinha, Giang N Tran, Hanah Na, Liviu M. Mirica","doi":"10.33774/chemrxiv-2021-1208w-v2","DOIUrl":"https://doi.org/10.33774/chemrxiv-2021-1208w-v2","url":null,"abstract":"The electrochemical hydrogen evolution reaction (HER) is considered a sustainable energy approach to advance fuel-cell technologies, and HER electrocatalysts that resembles the [NiFe] hydrogenases are highly desired. Herein, we report a bioinspired Ni(II) complex (NCHS2)Ni(OTf)2, where NCHS2 is 3,7-dithia-1(2,6)-pyridina-5(1,3)-benzenacyclooctaphane, that is an efficient electrocatalyst for HER with turnover frequencies up to 400,000 s–1 in the presence of low acid concentration, and compares favorably with the other reported Ni HER electrocatalysts. Importantly, in this complex the rationally designed NCHS2 ligand undergoes C-H bond activation and the resulting organometallic Ni-aryl complex restricts the formation of a Ni(0) species, which resembles the role of the cysteine ligands in [NiFe] hydrogenases. In addition, this electrocatalyst follows a unique HER mechanism via detectable Ni(I)/Ni(III) intermediates that are also proposed for [NiFe] hydrogenases, yet such a mechanism has not been observed to date in model systems.","PeriodicalId":72565,"journal":{"name":"ChemRxiv : the preprint server for chemistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42817621","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}
引用次数: 0
Transient Absorption of DNA bases in the gas phase and in chloroform solution: a comparative quantum mechanical study DNA碱基在气相和氯仿溶液中的瞬时吸收:比较量子力学研究
ChemRxiv : the preprint server for chemistry Pub Date : 2021-09-24 DOI: 10.33774/chemrxiv-2021-3hwfv
D. Fedotov, Alexander C Paul, H. Koch, F. Santoro, S. Coriani, R. Improta
{"title":"Transient Absorption of DNA bases in the gas phase and in chloroform solution: a comparative quantum mechanical study","authors":"D. Fedotov, Alexander C Paul, H. Koch, F. Santoro, S. Coriani, R. Improta","doi":"10.33774/chemrxiv-2021-3hwfv","DOIUrl":"https://doi.org/10.33774/chemrxiv-2021-3hwfv","url":null,"abstract":"We study the excited state absorption (ESA) properties of the four DNA bases (thymine, cytosine, adenine, and guanine) by different single reference quantum mechanical methods, i.e. equation of motion coupled cluster singles and doubles (EOM-CCSD), singles, doubles and perturbative triples (EOM-CC3), and time-dependent density functional theory (TD-DFT), with the long-range corrected CAM-B3LYP functional. Preliminary results at the Tamm-Dancoff (TDA) CAM-B3LYP level using the maximum overlap method (MOM) are reported for Thymine. In the gas phase, the three methods predict similar One Photon Absorption (OPA) spectra, which are also consistent with the experimental results and with the most accurate computational studies available in the literature. The ESA spectra are then computed for the pp  states (one for pyrimidine, two for purines) associated with the lowest energy absorption band, and for the close-lying np  state. The EOM-CC3, EOM-CCSD and CAM-B3LYP methods provide similar ESA spectral patterns, which are also in qualitative agreement with literature RASPT2 results. Once validated in the gas phase, TD-CAM-B3LYP has been used to compute the ESA in chloroform, including solvent effect by the polarizable continuum model (PCM). The predicted OPA and ESA spectra in chloroform are very similar to those in the gas phase, most of the bands shifting by less than 0.1 eV, with a small increase of the intensities and a moderate destabilization of the np  state. Finally, ESA spectra have been computed from the minima of the lowest energy pp  state, and are consistent with the available experimental transient absorption spectra of the nucleosides in solution, providing a final validation of our computational approach.","PeriodicalId":72565,"journal":{"name":"ChemRxiv : the preprint server for chemistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42741470","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}
引用次数: 0
Asymmetric Synthesis of Nodulones C & D by Chemoenzymatic Approach gives Insight into their Biosynthesis 化学酶法不对称合成结节酮C和D的研究为其生物合成提供了新的视角
ChemRxiv : the preprint server for chemistry Pub Date : 2021-09-24 DOI: 10.33774/chemrxiv-2021-3hr0t
T. Manna, Anshul Rajput, N. Saha, A. Mondal, S. Husain
{"title":"Asymmetric Synthesis of Nodulones C & D by Chemoenzymatic Approach gives Insight into their Biosynthesis","authors":"T. Manna, Anshul Rajput, N. Saha, A. Mondal, S. Husain","doi":"10.33774/chemrxiv-2021-3hr0t","DOIUrl":"https://doi.org/10.33774/chemrxiv-2021-3hr0t","url":null,"abstract":"The first asymmetric total synthesis of fungal secondary metabolites, (R)-nodulone C (4) and trans-nodulone D (5) has been reported through the chemoenzymatic approach. The strategy utilizes NADPH-dependent naphthol reductases of Magnaporthe grisea for the reduction of putative biosynthetic substrates, synthesized non-enzymatically in multiple steps. A dihydronaphthalenone 32 and cis-nodulone D (30) has also been synthesized chemoenzymatically. The work implies for similar steps during the biosynthesis of nodulones and their analogs with the involvement of tetrahydroxynaphthalene reductase related enzyme(s).","PeriodicalId":72565,"journal":{"name":"ChemRxiv : the preprint server for chemistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46810202","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}
引用次数: 0
Fast Reverse Intersystem Crossing Over 107 s-1 in Organic Emitters with Inverted Singlet-Triplet Gap via Intramolecular Through Space Charge Transfer 分子内空间电荷转移在具有倒转单重态-三重态间隙的有机发射体中的107 s-1快速反向系统间交叉
ChemRxiv : the preprint server for chemistry Pub Date : 2021-09-24 DOI: 10.33774/chemrxiv-2021-pg6k3
Yafei Wang, Xinrui Chen, R. Pollice, Bing Li, Yuanyuan Zhu, Anqi Lv, Yuchao Liu, Z. Ren, Huili Ma, Weiguo Zhu, A. Aspuru‐Guzik
{"title":"Fast Reverse Intersystem Crossing Over 107 s-1 in Organic Emitters with Inverted Singlet-Triplet Gap via Intramolecular Through Space Charge Transfer","authors":"Yafei Wang, Xinrui Chen, R. Pollice, Bing Li, Yuanyuan Zhu, Anqi Lv, Yuchao Liu, Z. Ren, Huili Ma, Weiguo Zhu, A. Aspuru‐Guzik","doi":"10.33774/chemrxiv-2021-pg6k3","DOIUrl":"https://doi.org/10.33774/chemrxiv-2021-pg6k3","url":null,"abstract":"Controlling excited state properties to achieve fast reverse intersystem crossing rates of over 107 s-1 is still challenging for intramolecular through-space charge transfer (TSCT) based delayed fluorescent materials. To gain further insight into the relationship between through-space and through-bond charge transfer (TSCT/TBCT), herein, three compounds DPS-24Ac, DPS-25Ac and DPS-OAc were prepared and characterized via NMR, MS and single crystal, in which the diphenylsulfone (DPS) is used as the acceptor group and acridine (Ac) as the donor moiety. Intense emissions from blue to yellow with high emission efficiency of 70-100% are detected for all emitters. Both computations and experiments suggest that compounds DPS-24Ac and DPS-25Ac have a clear TSCT effect and also an inverted adiabatic singlet-triplet gap which can be explained by the kinetic exchange mechanism. Notably, compound DPS-24Ac achieves the highest reverse intersystem crossing rate constant (krISC) of over 107 s-1 via manipulation of both TSCT and TBCT effects. The solution-processed devices display maximum external quantum efficiencies of 21.73, 12.14 and 4.96% for DPS-24Ac, DPS-25Ac and DPS-OAc, respectively. Overall, this work provides a novel avenue to achieve highly-efficient OLED materials with fast rISC by controlling both TSCT and TBCT effects.","PeriodicalId":72565,"journal":{"name":"ChemRxiv : the preprint server for chemistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44962793","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}
引用次数: 0
Metal-Free Photoredox Phosphonation of C–N and C–X Bonds in Aqueous Solvent Mixtures 水溶剂混合物中C–N和C–X键的无金属光氧化还原磷酸化
ChemRxiv : the preprint server for chemistry Pub Date : 2021-09-24 DOI: 10.33774/chemrxiv-2021-xpwps
Lei Pan, Alexandra S. Kelley, M. V. Cooke, Macy M. Deckert, Sébastien Laulhé
{"title":"Metal-Free Photoredox Phosphonation of C–N and C–X Bonds in Aqueous Solvent Mixtures","authors":"Lei Pan, Alexandra S. Kelley, M. V. Cooke, Macy M. Deckert, Sébastien Laulhé","doi":"10.33774/chemrxiv-2021-xpwps","DOIUrl":"https://doi.org/10.33774/chemrxiv-2021-xpwps","url":null,"abstract":"Aryl phosphonate esters are valuable moieties for the pharmaceutical and agrochemical industries. Accessing such compounds from affordable and abundant phosphite reagents and a wide range of aromatic building blocks under metal-free, visible light-induced reaction conditions would represent a desirable technology. Herein, we present an efficient and mild methodology for the synthesis of aromatic phosphonate esters in good to excellent yields using DBU and phenothiazine as a photoredox catalyst. The reaction exhibits wide functional group compatibility enabling the transformation in presence of ketone, amide, ester, amine, and alcohol moieties. Importantly, the reaction proceeds using a green solvent mixture primarily composed of water, thus lowering the environmental footprint of this transformation compared to current methods.","PeriodicalId":72565,"journal":{"name":"ChemRxiv : the preprint server for chemistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49552135","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}
引用次数: 0
Caught in the act: Observation of the solvent response triggered by excited-state proton transfer in real time 当场:实时观察激发态质子转移引发的溶剂反应
ChemRxiv : the preprint server for chemistry Pub Date : 2021-09-23 DOI: 10.33774/chemrxiv-2021-60zjv
C. Hoberg, T. Ockelmann, J. Shee, P. Balzerowski, Debasish Das Mahanta, F. Novelli, M. Head‐Gordon, M. Havenith
{"title":"Caught in the act: Observation of the solvent response triggered by excited-state proton transfer in real time","authors":"C. Hoberg, T. Ockelmann, J. Shee, P. Balzerowski, Debasish Das Mahanta, F. Novelli, M. Head‐Gordon, M. Havenith","doi":"10.33774/chemrxiv-2021-60zjv","DOIUrl":"https://doi.org/10.33774/chemrxiv-2021-60zjv","url":null,"abstract":"Real-time observation of the solvent response following Excited State Proton Transfer (ESPT) of the photoacid HPTS into water using Optical Pump THz Probe (OPTP) spectroscopy from 0.1 ps up to 300 ps is reported. Subsequent to an instantaneous (< 0.2 ps) electronic response of the solute to photoexcitation, an oscillation with a period of 4 ps involving an intermolecular H (pyranine) - O (water) mode is observed. While for the methylated derivative, MPTS, and the deprotonated photoacid this oscillation relaxes on a time scale of 1.5 – 2 ps, for HPTS the oscillation decays more rapidly within 0.4 ps, which marks the onset of proton transfer. Energy transfer from the excited solute to the solvent takes place on a time scale of 120 ps and is proportional to the Stokes shift associated with energetic relaxation from the Franck-Condon region to the ground state of the photoexcited HPTS.","PeriodicalId":72565,"journal":{"name":"ChemRxiv : the preprint server for chemistry","volume":"227 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41269015","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}
引用次数: 0
Reducing the irreducible: Dispersed metal atoms facilitate reduction of irreducible oxides. 还原不可还原:分散的金属原子有利于还原不可还原的氧化物。
ChemRxiv : the preprint server for chemistry Pub Date : 2021-09-23 DOI: 10.33774/chemrxiv-2021-601d3
Ville Korpelin, Marko M. Melander, K. Honkala
{"title":"Reducing the irreducible: Dispersed metal atoms facilitate reduction of irreducible oxides.","authors":"Ville Korpelin, Marko M. Melander, K. Honkala","doi":"10.33774/chemrxiv-2021-601d3","DOIUrl":"https://doi.org/10.33774/chemrxiv-2021-601d3","url":null,"abstract":"Oxide reducibility is a central concept quantifying the role of the support in catalysis. While reducible oxides are often considered catalytically active, irreducible oxides are seen as inert supports. Enhancing the reducibility of irreducible oxides has, however, emerged as an effective way to increase their catalytic activity while retaining their inherent thermal stability. In this work, we focus on the prospect of using single metal atoms to increase the reducibility of a prototypical irreducible oxide, zirconia. Based on extensive self-consistent DFT+U calculations, we demonstrate that single metal atoms significantly improve and tune the surface reducibility of zirconia. Detailed analysis of the observed single atom induced reducibility allows us to attribute the enhanced reducibility to strong interactions between the metal atom and the electrons trapped in the vacancy, and d-p orbital interactions between the metal atom and oxygen. This analysis enables transferring the obtained theoretical understanding to other irreducible oxides as well. The detailed understanding of how oxide reducibility can be tuned offers precise control over the catalytic properties of metal--oxides.","PeriodicalId":72565,"journal":{"name":"ChemRxiv : the preprint server for chemistry","volume":"78 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69678737","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}
引用次数: 6
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