Journal of Supramolecular Chemistry最新文献_第6页

Novel layer- and channel-type anionic host lattices built of thiourea, 2-thiouracil anion and water 硫脲、2-硫氧嘧啶阴离子和水构建的新型层和通道型阴离子主晶格

Journal of Supramolecular Chemistry Pub Date : 2002-08-01 DOI: 10.1016/S1472-7862(03)00069-8

Qi Li , Hai-Yan Hu , Chi-Keung Lam , Thomas C.W. Mak

{"title":"Novel layer- and channel-type anionic host lattices built of thiourea, 2-thiouracil anion and water","authors":"Qi Li , Hai-Yan Hu , Chi-Keung Lam , Thomas C.W. Mak","doi":"10.1016/S1472-7862(03)00069-8","DOIUrl":"https://doi.org/10.1016/S1472-7862(03)00069-8","url":null,"abstract":"<div>New inclusion complexes 3[(C2H5)4N+C4H3N2OS−]·(NH2)2CS·H2O (1) and (n-C3H7)4N+C4H3N2OS−·(NH2)2CS·2H2O (2) have been prepared and characterized by X-ray crystallography. In the crystal structure of 1, thiourea molecules, 2-thiouracil anions and water molecules generate a layer structure extending parallel to the (101) family of planes that involve typical O–H···O, N–H···O, O–H···S and N–H···S, N–H···N−hydrogen bonds, as well as weak C–H···O and C–H···S hydrogen bonds. The tetraethylammonium cations are arranged orderly between the stacked layers in a sandwich-like packing mode. Complex 2 features a three-dimensional host lattice containing intersecting open channels extending along the [001], [110] and [1<math><mtext>1</mtext></math>0] directions that are constructed through conventional hydrogen bonds. The tetra-n-propylammonium cations are accommodated in a zigzag fashion within each channel.</div>","PeriodicalId":100833,"journal":{"name":"Journal of Supramolecular Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2002-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1472-7862(03)00069-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72112030","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: 8

The first example of the cubic NbO-type metal–organic framework derived from a metal bis-chelate 由金属双螯合物衍生的立方NbO型金属-有机骨架的第一个例子

Journal of Supramolecular Chemistry Pub Date : 2002-08-01 DOI: 10.1016/S1472-7862(03)00059-5

Alexei B Burdukov , Galina I Roschupkina , Yury V Gatilov , Sergei A Gromilov , Vladimir A Reznikov

引用次数: 5

The first example of the cubic NbO-type metal–organic framework derived from a metal bis-chelate 由金属双螯合物衍生的立方nbo型金属有机骨架的第一个例子

Journal of Supramolecular Chemistry Pub Date : 2002-08-01 DOI: 10.1016/S1472-7862(03)00059-5

A. B. Burdukov, G. I. Roschupkina, Yury V. Gatilov, S. Gromilov, V. Reznikov

引用次数: 5

Single Crystal Diffraction Studies of Structure I, II and H Hydrates: Structure, Cage Occupancy and Composition 结构I、II和H水合物的单晶衍射研究:结构、笼占率和组成

Journal of Supramolecular Chemistry Pub Date : 2002-08-01 DOI: 10.1016/S1472-7862(03)00049-2

K. Udachin, C. Ratcliffe, J. Ripmeester

引用次数: 122

The Structure of Tetrabutylammonium Bromide Hydrate (C4H9)4NBr·21/3H2O 四丁基溴化铵水合物(C4H9)4NBr·21/3H2O的结构

Journal of Supramolecular Chemistry Pub Date : 2002-08-01 DOI: 10.1016/S1472-7862(03)00054-6

J. Lipkowski, V. Komarov, T. Rodionova, Yu. A. Dyadin, L. Aladko

引用次数: 86

Thermal expansion and lattice distortion of clathrate hydrates of cubic structures I and II 立方结构I和II包合物水合物的热膨胀和晶格畸变

Journal of Supramolecular Chemistry Pub Date : 2002-08-01 DOI: 10.1016/S1472-7862(03)00072-8

V. Belosludov, T. Inerbaev, O. Subbotin, R. Belosludov, J. Kudoh, Y. Kawazoe

引用次数: 33

Formation and Decomposition Mechanisms for Clathrate Hydrates 包合物水合物的形成和分解机理

Journal of Supramolecular Chemistry Pub Date : 2002-08-01 DOI: 10.1016/S1472-7862(03)00070-4

J. Tse, D. Klug

引用次数: 30

The Structure of Tetrabutylammonium Bromide Hydrate (C4H9)4NBr·21/3H2O 四丁基溴化铵水合物（C4H9）4NBr·21/3H2O的结构

Journal of Supramolecular Chemistry Pub Date : 2002-08-01 DOI: 10.1016/S1472-7862(03)00054-6

Janusz Lipkowski , Vladislav Yu Komarov , Tatyana V Rodionova , Yuri A Dyadin , Luydmila S Aladko

{"title":"The Structure of Tetrabutylammonium Bromide Hydrate (C4H9)4NBr·21/3H2O","authors":"Janusz Lipkowski , Vladislav Yu Komarov , Tatyana V Rodionova , Yuri A Dyadin , Luydmila S Aladko","doi":"10.1016/S1472-7862(03)00054-6","DOIUrl":"https://doi.org/10.1016/S1472-7862(03)00054-6","url":null,"abstract":"<div>The results of the investigation using single crystal X-Ray diffraction analysis of tetrabutylammonium bromide hydrate structure (C4H9)4NBr·21/3H2O, which was discovered in the tetrabutylammonium bromide–water binary system within the range of concentrated solutions, are presented in this communication. The (C4H9)4NBr·21/3H2O compound is crystallized in the trigonal space group R3c, a=16.609(1) Å, c=38.853(2) Å. The structure is a packing of tetrabutylammonium cations and clusters composed of hydrogen-bonded water molecules and bromide anions. The change of water functions is discussed within one binary system tetrabutylammonium bromide–water. In the clathrate formation region water plays the role of the host, forming the water–anion host framework in clathrate polyhydrates, while in the region of concentrated solutions, in the case of (C4H9)4NBr·21/3H2O compound, water functions as a guest, forming water-anion guest particle.</div>","PeriodicalId":100833,"journal":{"name":"Journal of Supramolecular Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2002-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1472-7862(03)00054-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72112027","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: 86

X-ray and 2H NMR studies of structure and dynamics in the Hofmann-type and the Hofmann-(en)-type pyrrole clathrates Hofmann型和Hofmann-（en）型吡咯包合物结构和动力学的X射线和2H NMR研究

Journal of Supramolecular Chemistry Pub Date : 2002-08-01 DOI: 10.1016/S1472-7862(03)00067-4

Shin-ichi Nishikiori , Akiji Takahashi , Christopher I Ratcliffe , John A Ripmeester

{"title":"X-ray and 2H NMR studies of structure and dynamics in the Hofmann-type and the Hofmann-(en)-type pyrrole clathrates","authors":"Shin-ichi Nishikiori , Akiji Takahashi , Christopher I Ratcliffe , John A Ripmeester","doi":"10.1016/S1472-7862(03)00067-4","DOIUrl":"https://doi.org/10.1016/S1472-7862(03)00067-4","url":null,"abstract":"<div>Structure and dynamics in the Hofmann and Hoffmann-en type pyrrole clathrates, Cd(NH3)2Ni(CN)4·2C4H4NH and Cd(en)Ni(CN)4·2C4H4NH, have been studied by single crystal X-ray crystallography, solid state 2H NMR, PXRD, TGA and DSC. Both show in-plane reorientation of the pyrrole in an inequivalent six-site potential, with two low energy minima where the N of the pyrrole is oriented up or down with respect to the crystal c axis, followed by out-of-plane 4-fold motion about an axis parallel to the crystal c axis. There is also evidence for an intermediate dynamic state where there is 2-fold rather than 4-fold motion. The NH3 or en groups of the host frameworks rotate about the crystal c direction. The Hofmann-en pyrrole clathrate shows two phase transitions at 196 and 259 K, and the dynamics of the host en and pyrrole guest appear to be intimately linked to the latter structural transition. The results for these pyrrole clathrates have been compared with those for the two equivalent benzene clathrates, obtained previously and augmented with new 2H NMR lineshape data for Cd(en)Ni(CN)4·2C6D6 above 300 K.</div>","PeriodicalId":100833,"journal":{"name":"Journal of Supramolecular Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2002-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1472-7862(03)00067-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72112033","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: 12

Cation–pi interactions in neutral calix[4]resorcinarenes 中性杯[4]间苯二甲酸芳烃中的阳离子- π相互作用

Journal of Supramolecular Chemistry Pub Date : 2002-08-01 DOI: 10.1016/S1472-7862(03)00068-6

J. Atwood, A. Szumna

引用次数: 36