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Reversible Formation of Polymeric Chains by Coordination of Pentaphosphaferrocene with Silver(I) Cations
Author(s) -
Scheer Manfred,
Gregoriades Laurence J.,
Virovets Alexander V.,
Kunz Werner,
Neueder Roland,
Krossing Ingo
Publication year - 2006
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200601546
Subject(s) - oligomer , dimer , monomer , chemistry , yield (engineering) , polymer , polymer chemistry , salt (chemistry) , coordination complex , crystallography , materials science , organic chemistry , metal , metallurgy
A fragile coordination polymer : The pentaphosphaferrocene [Cp*Fe(η 5 ‐P 5 )] reacts with the Ag I salt of the weakly coordinating anion [Al{OC(CF 3 ) 3 } 4 ] − to yield a polymer comprising cyclo ‐P 5 moieties in an unprecedented 1,2,3‐coordination mode (see figure). Analytical data and DFT calculations support the existence of a monomer/dimer/oligomer equilibrium in solution, which is entirely in favor of the monomer at room temperature and shifts to the dimer/oligomer at reduced temperatures.