Document Detail


Syntheses, structures, and properties of intercalation compounds of silver(I) complex with [2.2]paracyclophane.
MedLine Citation:
PMID:  14731025     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Reaction of [2.2]paracyclophane (pcp) with silver(I) trifluoroacetate (AgCF(3)CO(2)) and silver(I) pentafluoroproprionate (AgC(2)F(5)CO(2)) has led to isolation of three novel intercalation polymers: [Ag(4)(pcp)(CF(3)CO(2))(4)](C(6)H(6)) (1), [Ag(4)(pcp)(CF(3)CO(2))(4)](C(6)H(3)Me(3)) (2), and [Ag(4)(pcp)(C(2)F(5)CO(2))(4)](pcp) (3). Structure studies using single crystal X-ray diffraction have shown that all compounds contain two-dimensional layered frameworks based on cation-pi interactions, in which pcp exhibits an unprecedented micro-tetra-eta(2) coordination mode. Guest molecules which weakly interact with the host pcp via C-H.pi interactions are intercalated between layers. The guest-eliminated complexes (1a and 2a) and guest-reincorporated ones (1b or 1c and 2b or 2c), accompanied by small structural changes, were confirmed by (1)H NMR, thermogravimetric analysis, mass spectra, and X-ray powder diffraction patterns. The structural changes from 1 --> 1a --> 1c (=1) can take place reversibly in the process of exposure of 1a to benzene vapor. The original framework of complex 2 is also completely recovered by immersing 2a in mesitylene as well as exposing it to mesitylene vapor.
Authors:
Megumu Munakata; Shu Qin Liu; Hisashi Konaka; Takayoshi Kuroda-Sowa; Yusaku Suenaga; Masahiko Maekawa; Hisao Nakagawa; Yuji Yamazaki
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Inorganic chemistry     Volume:  43     ISSN:  0020-1669     ISO Abbreviation:  Inorg Chem     Publication Date:  2004 Jan 
Date Detail:
Created Date:  2004-01-20     Completed Date:  2004-04-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0366543     Medline TA:  Inorg Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  633-41     Citation Subset:  -    
Affiliation:
Department of Chemistry, Kinki University, Kowakae, Higashi-Osaka, Osaka 577-8502, Japan. munakata@chem.kindai.ac.jp
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