Reversible Thermochromism of Nickel(II) Complexes and Single-Crystal-to-Single-Crystal Transformation
Author(s) -
Jayaraman Pitchaimani,
Subramanian Karthikeyan,
N. Lakshminarasimhan,
Savarimuthu Philip Anthony,
Dohyun Moon,
Vedichi Madhu
Publication year - 2019
Publication title -
acs omega
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.779
H-Index - 40
ISSN - 2470-1343
DOI - 10.1021/acsomega.9b01263
Subject(s) - thermochromism , differential scanning calorimetry , single crystal , crystallography , raman spectroscopy , nickel , materials science , crystal (programming language) , thermogravimetric analysis , ligand (biochemistry) , chemistry , optics , metallurgy , organic chemistry , thermodynamics , receptor , biochemistry , programming language , physics , computer science
A molecular Ni(II)-NNN pincer complex ( 1 ) exhibited unprecedented reversible single-crystal-to-single-crystal transformation and color change upon heating and cooling due to a subtle change in the N-Ni(II) bond length and ligand conformation. UV-vis, thermogravimetric, differential scanning calorimetry, single-crystal structural data, temperature-dependent powder X-ray diffraction, and Raman and computational studies supported the structural change of the Ni(II) complex with temperature.
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