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Publikace detail

Sn,P-Peri-Substituted Naphthalene as a Ligand for Transition Metals
Rok: 2022
Druh publikace: článek v odborném periodiku
Název zdroje: Organometallics
Název nakladatele: American Chemical Society
Místo vydání: Washington
Strana od-do: 2327-2341
Tituly:
Jazyk Název Abstrakt Klíčová slova
cze Sn,P-Peri-Substituované Naftaleny jako ligandy pro přechodné kovy Byl připraven substituovaný Sn,P-Peri-Substituovaný naftalen a použit jako ligand pro přechodné kovy. Byly připravené iontové a neutrální komplexy obsahující vazbu Sn-TM. Sn,P-Peri-substituované naftaleny; naftaleny; ligandy; přechodné kovy
eng Sn,P-Peri-Substituted Naphthalene as a Ligand for Transition Metals Peri-substituted naphthalene 1-PPh2-8-SnL-C10H6 (1) [L = 2,6-(Me2NCH2)2C(6)H(3)] was used as a ligand for the complexation of transition metals (TMs). The presence of two donor atoms provided rigid K2P,Sn-coordinated complexes of TM. Correspondingly, reactions of 1 with binuclear Mn-2(CO)(10) and Co-2(CO)8 yielded ionic complexes [(K2-1)Mn(CO)4]+ [Mn(CO)5]- (2) and [(K2-1)Co(CO)3]+ [Co(CO)4]- (3), first examples of Sn-coordinated Mn(CO)4+ and Co(CO)3+ cations. The reactivity of 1 toward TM-Cl complexes is quite different. During these reactions, transmetallation with subsequent elimination of L(Cl)Sn was observed. However, L(Cl)Sn remained in the coordination sphere of the TM, yielding P-coordinated heterobimetallic TM complexes 1-PPh2-8-[Rh(COD){Sn(Cl)L}]C10H6 (7), 1-PPh2-8-[Ir(COD){Sn(Cl)L}]C10H6 (8), and 1-PPh2-8-[Pd(Cl){Sn(Cl)L}]-C10H6 (9) with additional Sn & RARR;TM intermolecular coordination. These transmetallations may be kinetically driven, as suggested by density functional theory calculations and isolation of the K2P,Sn-coordinated complex of PtCl2, [(K2-1)PtCl2] (10). Thus, the reactivity of 1 clearly deviates from the P,Sn-based ligands studied so far. n-heterocyclic silylene; correlated molecular calculations; density-functional theory; tin-palladium complexes; slater-type orbitals; bond covalent radii; gaussian-basis sets; coordination chemistry; carbonyl-complexes; catalytic hydrosilylation