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Multinuclear Silver Ethynide Supramolecular Synthons for the Construction of Coordination Networks
Author(s) -
Mak Thomas C. W.,
Zhao Liang
Publication year - 2007
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.200600386
Subject(s) - synthon , supramolecular chemistry , moiety , stacking , stereochemistry , chemistry , triple bond , crystallography , aryl , coordination polymer , alkyl , crystal structure , polymer chemistry , double bond , organic chemistry
The invariant appearance of the μ 8 coordination mode for the C 4 2− dianion in its silver(I) complexes, with four silver(I) atoms attached to each terminal ethynide moiety, implies that the Ag 4 ⊂CCCC⊃Ag 4 species may be considered as a new type of supramolecular synthon for the construction of 1D, 2D, and 3D coordination polymers. This Focus Review covers recent results on the synthesis and structural characterization of silver(I) arylethynide and alkylethynide complexes, which established the existence and utility of analogous polynuclear supramolecular synthons RCC⊃Ag n (R=aryl or alkyl; n =4, 5) and Ag n ⊂C 2 RC 2 ⊃Ag n (R= p ‐, m ‐, o ‐C 6 H 4 ; n =4, 5). The interplay of silver–ethynide bonding, which can be classified into σ, π, and mixed (σ,π) types, with argentophilicity, π–π stacking, and other weak interactions highlights the complexity and challenge in building coordination networks of silver ethynide complexes.