Carbonyl complexes of ruthenium(II) with unsymmetrical phosphine–phosphinesulfide ligands of the type Ph2P(CH2)nP(S)Ph2, n=1–4
摘要:
Reaction of [Ru(CO)(2)Cl-2](n) with ligands Ph2P(CH2)(n) P(S)Ph-2 (n = 1(a), 2(b), 3(c), 4(d)) in 1:1 molar ratio produces complex cis-[Ru(CO)(2)Cl-2(P boolean AND S)](1a) (P boolean AND S = eta(2)-(P, S) Coordinated) and cis -[Ru(CO)(2)Cl-2(P-S)](1b-d) (P-S = eta(1)-(P) coordinated), while 1:2 molar ratio yields complex of the type cis -[Ru(CO)(2)Cl-2(P-S)(2)](2a-d). The complex 2a undergoes partial decarbonylation reaction in CH2Cl2-hexane solution to give a new chelated complex [Ru(CO)Cl(P boolean AND S)(2)]Cl(2a'). Abstraction of halide with AglO(4) from the non-chelated complexes 1b-d and 2a-d afford corresponding chelated complexes [Ru(CO)(2)Cl(P boolean AND S)](ClO4)(3b-d) and [Ru(CO)(2)(P boolean AND S)(2)](ClO4)(2)(4a-d). The molecular structure of the complex 2a' has been determined by single crystal X-ray diffraction. The ruthenium atom is at the Centre of slightly distorted octahedral structure having the two phosphorus atoms of the two chelated P, S coordinated ligands at trans to each other, one CO group and Cl atom completing the coordination sphere. Other complexes have been characterized by elemental analysis, IR, 1H and 31p JHJ NMR spectroscopy. (C) 2003 Elsevier Ltd. All rights reserved.
A new series of iodocarbonyl ruthenium (II) complexes with unsymmetrical phosphine–phosphine sulfide ligands of the type Ph2P(CH2)nP(S)Ph2, n=1–4: Isolation and structural investigation
Hexa-coordinated chelate complex cis-[Ru(CO)(2)I-2(P boolean AND S)] (1a) (P boolean AND S = eta(2)-(P, S)-coordinated) and penta-coordinated non-chelate complexes cis-(Ru(CO)(2)I-2(P similar to S)] (1b-d) P similar to S = eta(1)-(P)-coordinated are produced by the reaction of polymeric [Ru(CO)(2)I-2](n), with equimolar quantity of the ligands Ph2P(CH2)(n)P(S)Ph-2 n = 1(a), 2(b), 3(c), 4(d)} in dichloromethane at room temperature. The bidentate nature of the ligand a in the complex la leads to the formation of five-membered chelate ring which confers extra stability to the complex. On the other hand, 1:2 (Ru:L) molar ratio reaction affords the hexa-coordinated non-chelate complexes cis,cis,trans[Ru(CO)(2)I-2(P similar to S)(2)](2a-d) irrespective of the ligands. All the complexes show two equally intense terminal v(CO) bands in the range 2028-2103 cm(-1). The v(PS) band of complex la occurs 23 cm-1 lower region compared to the corresponding free ligand suggesting chelation via metal-sulfur bond formation. X-ray crystallography reveals that the Ru(II) atom occupies the center of a slightly distorted octahedral geometry. The complexes have also been characterized by elemental analysis, H-1, C-13 and P-31 NMR spectroscopy. (c) 2005 Elsevier B.V. All rights reserved.
Complexation of [ω-diphenylphosphinoalkyl]diphenylphosphine sulphides with AgNO3
作者:Eugenii I. Matrosov、Zoya A. Starikova、Aleksandr I. Yanovsky、Dmitrii I. Lobanov、Inga M. Aladzheva、Olga V. Bykhovskaya、Yuri T. Struchkov、Tatyana A. Mastryukova、Martin I. Kabachnik
DOI:10.1016/s0022-328x(96)06956-2
日期:1997.5
By reaction of [omega-diphenylphosphinoalkyl]diphenylphosphine sulphides Ph2P(CH2)(n)P(S)Ph-2 (n = 2-4) (L-1-L-3) with AgNO3 in CH3CN crystalline complexes with the composition metal:ligand 1:1 [Ag(L-1)NO3, Ag(L-2)NO3, Ap(L-3)NO3] and 1:2 [Ag(L-1)(2)NO3: Ag(L-3)(2)NO3] were isolated. According to the X-ray analysis data. the crystals of Ag(L-1)NO3 are constructed from centrosymmetric dimeric molecules based on the 12-membered macrocycle AgSPCH2CH2PAgSPCH2CH2P. Each of the neutral ligands L-1 is a bridge between two silver ions and each of the silver ions is coordinated by a chelating NO3 group. According to the IR spectra, the other 1:1 groups of the 1:1 complexes are replaced by the complexes also have an analogous structure. In the 1:2 complexes the coordinated NO3 phosphine sulphide ligand. The downfield shifts of the signals of P-III and P-V atoms in P-31 NMR spectra of 1:2 complexes in comparison with the free ligands L-1 and L-3 reflect a participation of the P-III atom and P=S group in complex formation. (C) 1997 Elsevier Science S.A.
Carbonyl complexes of ruthenium(II) with unsymmetrical phosphine–phosphinesulfide ligands of the type Ph2P(CH2)nP(S)Ph2, n=1–4
Reaction of [Ru(CO)(2)Cl-2](n) with ligands Ph2P(CH2)(n) P(S)Ph-2 (n = 1(a), 2(b), 3(c), 4(d)) in 1:1 molar ratio produces complex cis-[Ru(CO)(2)Cl-2(P boolean AND S)](1a) (P boolean AND S = eta(2)-(P, S) Coordinated) and cis -[Ru(CO)(2)Cl-2(P-S)](1b-d) (P-S = eta(1)-(P) coordinated), while 1:2 molar ratio yields complex of the type cis -[Ru(CO)(2)Cl-2(P-S)(2)](2a-d). The complex 2a undergoes partial decarbonylation reaction in CH2Cl2-hexane solution to give a new chelated complex [Ru(CO)Cl(P boolean AND S)(2)]Cl(2a'). Abstraction of halide with AglO(4) from the non-chelated complexes 1b-d and 2a-d afford corresponding chelated complexes [Ru(CO)(2)Cl(P boolean AND S)](ClO4)(3b-d) and [Ru(CO)(2)(P boolean AND S)(2)](ClO4)(2)(4a-d). The molecular structure of the complex 2a' has been determined by single crystal X-ray diffraction. The ruthenium atom is at the Centre of slightly distorted octahedral structure having the two phosphorus atoms of the two chelated P, S coordinated ligands at trans to each other, one CO group and Cl atom completing the coordination sphere. Other complexes have been characterized by elemental analysis, IR, 1H and 31p JHJ NMR spectroscopy. (C) 2003 Elsevier Ltd. All rights reserved.
Aladzheva, Inga M.; Bykhovskaya, Olga V.; Lobanov, Dmitrii I., Phosphorus, Sulfur and Silicon and the Related Elements, 1996, vol. 111, p. 116
作者:Aladzheva, Inga M.、Bykhovskaya, Olga V.、Lobanov, Dmitrii I.、Petrovskii, Pavel V.、Antipin, Michael Yu.、et al.