Ruthenium(ii) and ruthenium(iv) complexes containing hemilabile heterodifunctional iminophosphorane-phosphine ligands Ph2PCH2P(NR)Ph2

Abstract

† Electronic supplementary information (ESI) available: analytical and spectroscopic data. See http://www.rsc.org/suppdata/dt/b1/b110442j/ complexes containing iminophosphorane-phosphine ligands (see Chart 1). In addition, the lability of the coordinated -Ph 2 P᎐ ᎐ NR moiety in some of these complexes has been investigated. Results and discussionSynthesis of ruthenium(II) complexes [Ru( 6 -p-cymene)Cl 2 { 1 -P-Ph 2 PCH 2 P(᎐ ᎐ NR)Ph 2 }] (R ‫؍‬ SiMe 3 4, p-C 6 F 4 CN 5, p-C 5 F 4 N 6) and [Ru( 6 -p-cymene)Cl{ 2 -P,N-Ph 2 PCH 2 P(᎐ ᎐ NR)Ph 2 }][PF 6 ] (R ‫؍‬ H 7, p-C 6 F 4 CN 8, p-C 5 F 4 N 9)The ability of dimers [{Ru(η 6 -arene)(µ-Cl)Cl} 2 ] to form monoand dinuclear ruthenium() complexes of general formula [Ru-(η 6 -arene)Cl 2 L] and [{Ru(η 6 -arene)Cl 2 } 2 (µ-L)] is well-known. 15 As expected, we have found that the reaction of [{Ru(η 6p-cymene)(µ-Cl)Cl} 2 ] 16 with a two-fold excess of iminophosphorane-phosphines Ph 2 PCH 2 P(᎐ ᎐ NR)Ph 2 (R = SiMe 3 1, Chart 1 Iminophosphorane-phosphine ligands used in this paper.

Conformational flexibility in amidophosphoesters: a CSD analysis completed with two new crystal structures of (C6H5O)2P(O)X [X = NHC7H13 and N(CH2C6H5)2]

“…+sc and +ap). These are WEWVUP (Allcock et al, 1994), WIHPIM (Balakrishna et al, 1994) (Cadierno et al, 2004a) and BACVEH-Mol1 (Du et al, 2001), and there is no remarkable difference between these 11 molecules and (II).…”

Supramolecular chemistry of half-sandwich organometallic building blocks based on RuCl2(p-cymene)Ph2PCH2Y

“…These range from their interesting and varied coordination chemistry [1][2][3] including DNA binding studies [4][5][6] to applications in areas such as chemosensors/highly selective receptors [7,8] and catalysis [9][10][11][12]. Furthermore these organometallic fragments have been used in the synthesis of cyclometallated [13][14][15] and chiral half-sandwich compounds [16,17].…”

Imination reactions of free and coordinated 2-diphenylphosphino-1-phenyl-phospholane: Access to regioisomeric ruthenium(ii) complexes containing novel iminophosphorane–phosphine ligands

“…Thus, we have found that the treatment of 5a with a stoichiometric amount of AgSbF 6 in dichloromethane at room temperature generates the cationic derivative 6, which is readily formed via selective intramolecular O-coordination of the phosphoryl group (Scheme 3). 21 We also note that, although some ruthenium complexes containing N-coordinated RC 6 F 4 CN (R = F, CN) ligands are known, 22 the coordination of the nitrile unit of 3b in the dinuclear complex 7 can be considered as rather unusual. 60 : 40 ratio.…”