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Synthetic Diversity and Luminescence Properties of ArN(PPh 2 ) 2 ‐Based Copper(I) Complexes
Author(s) -
Kathewad Neha,
Pal Shiv,
Kumawat Rameshwar L.,
Ehesan Ali Md.,
Khan Shabana
Publication year - 2018
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.201800096
Subject(s) - chemistry , copper , thermochromism , luminescence , substituent , crystallography , single crystal , crystal structure , stereochemistry , organic chemistry , physics , optoelectronics
The dinuclear copper(I) complexes 1 and 2 were prepared by reacting PNP ligands ArN(PPh 2 ) 2 , (Ar = 2,6‐Me 2 C 6 H 3 ; L1 ) with CuCl and CuBr. By altering the position of the methyl substituents from ortho to meta (Ar = 3,5‐Me 2 C 6 H 3 ; L2 ), trinuclear copper(I) complexes 3 and 4 were obtained, while the methyl substituent at the para position (Ar = 4‐MeC 6 H 4 ; L3 ) led to the tetranuclear copper(I) complexes 5 and 6 . Single crystal X‐ray studies show the different Cu ··· Cu interactions in complexes 1 – 6 ranging from 2.650 to 2.935 Å. The copper(I) complexes 3 – 6 were found to exhibit mechanochromic as well as thermochromic luminescent behavior presumably stemming from a decrease in their Cu ··· Cu distances.