Antimony(III)-Selenium Complexes with Synergetic Effect between Sb-Se Bond and Sb⋅⋅⋅⋅C Interactions

14 Pages Posted: 13 Apr 2022

See all articles by Muneshwar Nandeshwar

Muneshwar Nandeshwar

Indian Institute of Technology Hyderabad

Prabusankar Ganesan

Indian Institute of Technology (IIT), Hyderabad

Abstract

The imidazole-selone antimony(III) complexes have been described with unique bonding situations around the antimony center. The mononuclear complexes, [(L1)SbCl3] (1) and [(L2)SbCl3] (2) were isolated from the reaction between SbCl3 and corresponding symmetrically crowded, 1,3-bis(2,6-diisopropyl phenol) imidazole selone (L1) and unsymmetrically crowded, 2,(2,6-benzhydryl-4-methyl phenyl) imidazole pyridine selone (L2), respectively. The bonding nature of 1 and 2 differ remarkably due to the unique steric hindrance around the antimony center. Besides, the Menshutkin type interaction was observed in 1 and 2. The extent of Se→Sb bonding and (aryl)C→Sb bonding were investigated by X-ray crystallography. The increasing steric bulk of the imidazole-selone from symmetric to unsymmetrical nature was found to greatly influence the donor-acceptor magnitude of Se→Sb bonding and (aryl)C→Sb bonding and Menshutkin type interactions. The antimony and selenium bond length in 1 is shorter than that of 2.

Keywords: Main group chemistry, Antimony, Selone, Menshutkin interactions

Suggested Citation

Nandeshwar, Muneshwar and Ganesan, Prabusankar, Antimony(III)-Selenium Complexes with Synergetic Effect between Sb-Se Bond and Sb⋅⋅⋅⋅C Interactions. Available at SSRN: https://ssrn.com/abstract=4083391 or http://dx.doi.org/10.2139/ssrn.4083391

Muneshwar Nandeshwar

Indian Institute of Technology Hyderabad ( email )

Prabusankar Ganesan (Contact Author)

Indian Institute of Technology (IIT), Hyderabad ( email )

Hyderabad
India

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