ICCAS OpenIR
Isolation by crystallization of translational isomers of a bistable donor-acceptor [2]catenane
Wang, Cheng1; Olson, Mark A.1; Fang, Lei1; Benitez, Diego2; Tkatchouk, Ekaterina2; Basu, Subhadeep1; Basuray, Ashish N.1; Zhang, Deqing3; Zhu, Daoben3; Goddard, William A.; Stoddart, J. Fraser1
2010-08-10
Source PublicationPROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN0027-8424
Volume107Issue:32Pages:13991-13996
AbstractThe template-directed synthesis of a bistable donor-acceptor [2]catenane wherein both translational isomers-one in which a tetrathiafulvalene unit in a mechanically interlocked crown ether occupies the cavity of a cyclobis(paraquat-p-phenylene) ring and the other in which a 1,5-dioxynaphthalene unit in the crown ether resides inside the cavity of the tetracationic cyclophane-exist in equilibrium in solution, has led to the isolation and separation by hand picking of single crystals colored red and green, respectively. These two crystalline co-conformations have been characterized separately at both the molecular and supramolecular levels, and also by dynamic NMR spectroscopy in solution where there is compelling evidence that the mechanically interlocked molecules are present as a complex mixture of translational, configurational, and conformational isomers wherein the isomerization is best described as being a highly dynamic and adaptable phenomenon.
KeywordMechanical Bond Formation Stereochemistry Template-directed Synthesis Structural Isomerism X-ray Crystallography
DOI10.1073/pnas.1009302107
Indexed BySCI
Language英语
WOS IDWOS:000280767700006
PublisherNATL ACAD SCIENCES
Citation statistics
Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/69334
Collection中国科学院化学研究所
Corresponding AuthorStoddart, J. Fraser
Affiliation1.Northwestern Univ, Dept Chem, Evanston, IL 60208 USA
2.CALTECH, Mat & Proc Simulat Ctr, Pasadena, CA 91125 USA
3.Chinese Acad Sci, Organ Solids Lab, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang, Cheng,Olson, Mark A.,Fang, Lei,et al. Isolation by crystallization of translational isomers of a bistable donor-acceptor [2]catenane[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2010,107(32):13991-13996.
APA Wang, Cheng.,Olson, Mark A..,Fang, Lei.,Benitez, Diego.,Tkatchouk, Ekaterina.,...&Stoddart, J. Fraser.(2010).Isolation by crystallization of translational isomers of a bistable donor-acceptor [2]catenane.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,107(32),13991-13996.
MLA Wang, Cheng,et al."Isolation by crystallization of translational isomers of a bistable donor-acceptor [2]catenane".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 107.32(2010):13991-13996.
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