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Heterobimetallic Cu(I)/Ru(II) Acetylide Bridged Hybrid Complexes Containing Coordination and Organometallic Sites
Author(s) -
Lolage Sanjay R.,
Pawal Sandip B.,
Chavan Sanjay S.
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201701764
Subject(s) - solvatochromism , chemistry , acetylide , copper , crystallography , luminescence , ligand (biochemistry) , coordination complex , stereochemistry , solvent , materials science , metal , organic chemistry , optoelectronics , biochemistry , receptor
The heterobimetallic complexes [Cu( phen )(NC 5 H 4 HC=NC 6 H 4 C≡CC 6 H 4 C≡CRu(dppe) 2 Cl)]X ( 1 a‐4 a ) and [Cu( bipy )(NC 5 H 4 H C=NC 6 H 4 C≡CC 6 H 4 C≡CRu(dppe) 2 Cl)]X ( 1 b‐4 b ) (where X= I, ClO 4 , BF 4 , PF 6 ; phen= 1, 10 phenanthroline, bipy = 2, 2′ bipyridine) have been prepared by the reaction of (NC 5 H 4 HC=NC 6 H 4 C≡CC 6 H 4 C≡CRu(dppe) 2 Cl) with copper salts in presence of phen or bipy as a coligand. Our synthetic attempts and successes are discussed in combination with spectroscopic and electronic characterization of the compounds. Comparison between phen and bipy complexes were studied by thermal and electrochemical analysis where, thermally robust complexes demonstrate quasireversible redox behaviour analogous to Cu I/II /Ru II/III couple. SEM of representative complexes 2 a and 2 b clarify the average size and morphology of the complexes. Room temperature luminescence influenced by varying coordinating ability of counter anions along with π‐acidic character in green‐yellow region was observed. Solvent dependant emission displays positive solvatochromism at ambient temperature. The second harmonic generation (SHG) efficiency of the complexes was measured by Kurtz‐powder technique indicating that all complexes display the second harmonic generation (SHG) property.