Organorhodium(III)- and Iridium(III)-Substituted 20-Tungstobismuthates(III) and -Antimonates(III), [(MCp*)2X2W20O70]10- (M = RhIII and IrIII; X = BiIII and SbIII)

Ali S Mougharbel; Sihana Ahmedi; Saurav Bhattacharya; Ananthu Rajan; Ulrich Kortz

doi:10.1021/acsomega.1c04707

Organorhodium(III)- and Iridium(III)-Substituted 20-Tungstobismuthates(III) and -Antimonates(III), [(MCp*)₂X₂W₂₀O₇₀]^10- (M = Rh^III and Ir^III; X = Bi^III and Sb^III)

ACS Omega. 2021 Dec 8;6(50):34494-34500. doi: 10.1021/acsomega.1c04707. eCollection 2021 Dec 21.

Authors

Ali S Mougharbel¹, Sihana Ahmedi¹, Saurav Bhattacharya¹, Ananthu Rajan¹, Ulrich Kortz¹

Affiliation

¹ Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany.

Abstract

The synthesis of four organometallic RhCp*- and IrCp*-containing heteropoly-20-tungstates, [{RhCp*}₂Bi₂W₂₀O₇₀]^10- (1), [{IrCp*}₂Bi₂W₂₀O₇₀]^10- (2), [{RhCp*}₂Sb₂W₂₀O₇₀]^10- (3), and [{IrCp*}₂Sb₂W₂₀O₇₀]^10- (4) has been accomplished by reaction of (MCp*Cl₂)₂ with [X₂W₂₂O₇₄(OH)₂]^12- in aqueous solution at pH 6 and 70 °C. The four polyanions 1-4 were structurally characterized in the solid state by single-crystal XRD, FTIR, and TGA and in solution by ¹⁸³W and ¹³C NMR. For the Rh derivatives 1 and 3 the ¹⁸³W-¹⁰³Rh coupling (² J _W-Rh 3.0 Hz) could be identified by ¹⁸³W NMR.