Second order non-linear optical activity of arsenic and antimony dithiolene complexes.
Synthesis and characterization of dithiolene complexes of arsenic and antimony in trivalent state have been reported. A four coordinated structural motif results in a ladder like arrangement in the arsenic complex due to the inter-anionic As-S interaction which is replaced by Sb-π interaction with the counter cation in the solid state structure of the similar antimony complex. Electronic structure calculations on ground state geometries and the time-dependent density functional theoretical calculations were performed in order to characterize the absorption spectra incorporating solvent effects. Notably, both the complexes display intense second order optical non-linearity as has been determined using hyper-Rayleigh scattering technique in dichloromethane solution and the results are corroborated by DFT calculations.
Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, UP, India. joyeemitra@gmail.com kuntalpal1@gmail.com.
Joyee
J
Mitra
Kuntal
K
Pal
Sabyasachi
S
Sarkar
D000965:Antimony / Q000737:chemistry*; D001151:Arsenic / Q000737:chemistry*; D018360:Crystallography, X-Ray; D008958:Models, Molecular; D056004:Molecular Dynamics Simulation; D009904:Optical Rotation; D013438:Sulfhydryl Compounds / Q000138:chemical synthesis* / Q000737:chemistry
D013438:Sulfhydryl Compounds; D000965:Antimony; D001151:Arsenic