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Synthesis and crystal structure of silver and argentate complexes of mixed halocarborane anions, (C 5 H 5 N) 2 Ag(1‐HCB 11 Br 5 I 6 )(C 5 H 5 N) and [{(CH 3 CN) 4 Ag 3 }{Ag(CB 11 I 5 Br 6 ) 2 }] n
Author(s) -
Tsang ChiWing,
Yang Qingchuan,
Mak Thomas C. W.,
Xie Zuowei
Publication year - 2003
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.455
Subject(s) - chemistry , deprotonation , acetonitrile , crystal structure , crystallography , carborane , stereochemistry , single crystal , salt (chemistry) , ion , recrystallization (geology) , medicinal chemistry , organic chemistry , paleontology , biology
The first argentate salt of carborane anion, [{(CH 3 CN) 4 Ag 3 }{Ag(CB 11 I 5 Br 6 ) 2 }] n , was prepared from K 2 [CB 11 I 5 Br 6 ] and AgNO 3 followed by recrystallization from acetonitrile. Single‐crystal X‐ray analyses indicate that the CB 11 I 5 Br 6 2− dianion has a significantly different coordination motif from that of the CB 11 Br 5 I 6 − monoanion. This result suggests that the polarity of the CB 11 cage can be changed after deprotonation of the cage CH proton. Copyright © 2003 John Wiley & Sons, Ltd.