Vanadium-induced nucleophilic IPSO substitutions in a coordinated tetrachlorosemiquinone ring: formation of the chloranilate anion as a bridging ligand.
In basic media, the coordinated semiquinone radical in the spin-coupled [(bipy)ClV(IV)O(TCSQ)] 1 (HTCSQ = tetrachlorosemiquinone) undergoes nucleophilic ipso substitution (OH- for Cl-) to generate the chloranilate anion (CA(2-)) that bridges the vanadium(IV) centers, forming a binuclear compound [(bipy)ClV(IV)O(CA)OV(IV)Cl(bipy)] 2.
Chatterjee
Pabitra Baran
PB
Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, Kolkata 700 032, India.
Bhattacharya
Kisholoy
K
Kundu
Nabanita
N
Choi
Ki-Young
KY
Clérac
Rodolphe
R
Chaudhury
Muktimoy
M
D000838:Anions / Q000737:chemistry; D016227:Benzoquinones / Q000737:chemistry*; D002713:Chlorine / Q000737:chemistry*; D003432:Cross-Linking Reagents / Q000737:chemistry*; D006873:Hydroquinones / Q000737:chemistry*; D008024:Ligands; D008958:Models, Molecular; D015394:Molecular Structure; D014639:Vanadium / Q000737:chemistry*
D000838:Anions; D016227:Benzoquinones; D003432:Cross-Linking Reagents; D006873:Hydroquinones; D008024:Ligands; D014639:Vanadium; D002713:Chlorine; C014400:chloranilic acid