Probing the mechanistic and energetic basis for the Weak-Link approach to supramolecular coordination complexes
作者： Bradley J. Holliday , You-Moon Jeon , Chad A. Mirkin , Charlotte L. Stern , Christopher D. Incarvito
DOI: 10.1021/OM020739C
关键词:
摘要: Through the Weak-Link Synthetic Approach, unsymmetric hemilabile ligand, 1,4-bis(2-diphenylphosphinoethoxy)naphthalene (7), has been used to prepare binuclear Rh(I) macrocycles in a two-step fashion. The intermediate structure, [(μ2,η1:η4:η1-(1,4-bis(2-(diphenylphosphino)ethoxy)naphthalene))2Rh2][BF4]2 (8), and several macrocyclic complexes, [(μ2-1,4-bis(2-(diphenylphosphino)ethoxy)naphthalene)2Rh2(CH3CN)4][BF4]2 (9), [(μ2-1,4-bis(2-(diphenylphosphino)ethoxy)naphthalene)2Rh2(CO)6][BF4]2 (10), [(μ2-1,4-bis(2-(diphenylphosphino)ethoxy)naphthalene)2(CO)2Rh2(CH3CN)2][BF4]2 (11), are reported herein. Additionally, mononuclear [(η1:η4:η1-1,4-bis(2-(diphenylphosphino)ethoxy)naphthalene)Rh][BF4] (12) [(η1:η1-1,4-bis(2-(diphenylphosphino)ethoxy)naphthalene)(CO)Rh(CH3CN)][BF4] (13), were isolated fully characterized. Single-crystal X-ray diffraction structures of 8, 9 (cis-, anti-), 11, 12 determined. 2-D solution NMR studies solid-state crystal 8 ...
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