Open AccessMetallophilicity versus π-π Interactions: Argentophilicity in Porphyrin Dimer
Author(s) -
PRAGATI,
AKHILESH KUMAR,
Akhil Kumar Singh,
Arvind Kumar Pandey,
SANTOSH KUMAR SRIVASTAVA
Publication year - 2022
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2022.23514
Subject(s) - porphyrin , chemistry , dimer , dispersion (optics) , crystallography , photochemistry , distortion (music) , optics , optoelectronics , physics , organic chemistry , amplifier , cmos
The interaction between two unsupported Ag(III)porphyrins, which exist as a metalloporphyrin dimer has been studied. The UV-visiblespectrum shows only slight change in Soret band position indicative of Ag(III) formation. Optimized structure of the complexes hasclearly revealed that only metal-centered oxidation results in short Ag-N (porphyrin) distance with large distortion in the porphyrinmacrocycle. The dispersion effect brings two rings more closer to form an unprecedented Ag(III)···Ag(III) interaction and cancel out theπ-π repulsion. The interaction energy was found to be 55.34 Kcal/mol and was further supported by electron localization function, AIManalysis. The Ag(III) dimer also gives pink emission at low temperature. This type of interaction can be exploited to design several lightresponsive materials and molecular semiconductors.