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Trimeric Cage Complexes of Platinum Group and Coin Metals
Author(s) -
Stickel Marc,
MaichleMoessmer Caecilia,
Mayer Hermann A.
Publication year - 2014
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201301325
Subject(s) - chemistry , cyclohexane , platinum , metal , stereochemistry , crystal structure , crystallography , stoichiometry , nuclear magnetic resonance spectroscopy , medicinal chemistry , group (periodic table) , catalysis , organic chemistry
The treatment of cis , cis ‐1,3,5‐tris(diphenylphosphinomethyl)cyclohexane (tdppmcy) with Rh(CO)Cl(PPh 3 ) 2 , MCl 2 L 2 (M = Pd, Pt; L = PhCN, MeCN), Pt(CN) 2 , AgBF 4 , or Au(Cl)PPh 3 in a stoichiometric ratio of 2:3 affords the trimeric macrocyclic cage compounds [M] 3 (tdppmcy) 2 {[M] = trans ‐Rh(CO)Cl ( 2 ), trans ‐PdCl 2 ( 3 ), trans ‐Pt(CN) 2 ( 4b ), Ag + ( 5 ), and AuCl ( 6 )} in good yields. Only when PtCl 2 (PhCN) 2 was used as complex precursor, the formation of coordination polymers was observed. NMR spectroscopy in solution as well as single‐crystal X‐ray diffraction analyses demonstrate that in all cases two tdppmcy ligands coordinate three metal fragments exclusively in trans fashion.