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Influence of Xantphos Derivative Ligands on the Coordination in Their Copper(I) and Silver(I) Complexes
Author(s) -
VicianoChumillas Marta,
CarbonellVilar José M.,
Armentano Donatella,
Cano Joan
Publication year - 2019
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.201900323
Subject(s) - xantphos , chemistry , copper , xanthene , coordination complex , crystal structure , crystallography , derivative (finance) , coordination geometry , bite angle , inorganic chemistry , stereochemistry , metal , molecule , palladium , organic chemistry , denticity , hydrogen bond , catalysis , financial economics , economics
New mononuclear copper(I) and silver(I) compounds of formula [Cu(Xantphos) 2 ]BF 4 ( 1 ), [Ag(Xantphos) 2 ]ClO 4 · H 2 O ( 2 ), [Cu( t BuXantphos)(BF 4 )] ( 3 ), [Ag( t BuXantphos)]ClO 4 ( 4 ), and [Cu(Nixantphos)Br(DMF)] ( 5 ) [Xantphos = 4,5‐Bis(diphenylphosphino)‐9,9‐dimethylxanthene, t BuXantphos = [9,9‐dimethyl‐4,5‐bis(di‐ tert ‐butylphosphino)xanthene, Nixantphos = 4,6‐bis(diphenylphosphino)phenoxazine] have been synthesized and characterized by spectroscopic methods and X‐ray crystal structure determinations. The influence of the diverse Xantphos derivative ligands on the coordination in their copper(I) and silver(I) complexes is reported. Whereas copper(I) complexes adopt a coordination number of four, with tetrahedral ( 1 and 5 ) and square‐planar ( 3 ) geometries; silver(I) complexes display coordination numbers of four and two with tetrahedral ( 2 ) and linear ( 4 ) geometries. A remarkable feature is the coordination of the BF 4 – anion to the copper(I) ion in 3 . In addition, compounds 2 and 5 are emitting materials with radiation bands at around 485 nm.