New bis(phosphines) derived from N,N′-substituted ethylenediamine derivatives.: Synthesis and transition metal chemistry of X2PN(R)CH2CH2(R)NPX2 (R = CH2Ph or Ph, X = Ph;: R = CH2Ph, X2 = O2C6H4).: The crystal and molecular structure of Ph2PN(CH2Ph)CH2CH2(CH2Ph)NPPh2 and cis-[{PtCl2Ph2PN(CH2Ph)CH2CH2(CH2Ph)NPPh2}]

被引:61
作者
Balakrishna, MS [1 ]
Abhyankar, RM
Mague, JT
机构
[1] Indian Inst Technol, Dept Chem, Bombay 400076, Maharashtra, India
[2] Tulane Univ, Dept Chem, New Orleans, LA 70118 USA
来源
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1999年 / 09期
关键词
D O I
10.1039/a809488h
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The bis(phosphines) of the type X2PN(R)CH2CH2(R)NPX2 (R = Ph or CH2Ph, X = Ph; R - CH2Ph, X-2 = O2C6H4) with the ethylenediamine framework were prepared by reaction of X2PCl with the corresponding N,N'-substituted ethylenediamine derivatives. These ligands readily formed complexes with Group 6 metals and Ru-II, Ni-II, Pd-II and Pt-II. All complexes were characterised by elemental analysis, IF: and NMR spectroscopic methods of which P-31-{H-1} is most valuable. The structures of the bis(phosphine) ligand Ph2PN(CH2Ph)CH2CH2(CH2Ph)NPPh2 and its platinum(II) complex cis-[PtCl2{PPh2N(CH2Ph)CH2CH2(CH2Ph)NPPh2}] were determined by X-ray crystallography. The ligand crystallises in the extended conformation with both the nitrogen atoms nearly planar and the bond angles around them close to 120 degrees. The P-N distances are shorter than normally accepted P-N single bond lengths (ca. 1.77 Angstrom) suggesting some degree of P-N pi bonding. The seven-membered chelate ring in the platinum complex is non-planar but the metal atom is in a typical square planar environment with two phosphorus atoms and two chlorine atoms in a mutually cis disposition and the ethylenediamine bridge is folded with respect to the plane in an "open envelope" fashion.
引用
收藏
页码:1407 / 1412
页数:6
相关论文
共 65 条
[1]   CYCLOPENTADIENYL-RUTHENIUM AND CYCLOPENTADIENYL-OSMIUM CHEMISTRY .7. COMPLEXES CONTAINING NITRILES, TERTIARY PHOSPHINES OR PHOSPHITES FORMED BY ADDITION OR DISPLACEMENT-REACTIONS [J].
ASHBY, GS ;
BRUCE, MI ;
TOMKINS, IB ;
WALLIS, RC .
AUSTRALIAN JOURNAL OF CHEMISTRY, 1979, 32 (05) :1003-1016
[2]   COORDINATION CHEMISTRY OF DIPHOSPHINOAMINE AND CYCLODIPHOSPHAZANE LIGANDS [J].
BALAKRISHNA, MS ;
REDDY, VS ;
KRISHNAMURTHY, SS ;
NIXON, JF ;
STLAURENT, JCTRB .
COORDINATION CHEMISTRY REVIEWS, 1994, 129 (1-2) :1-90
[3]   HETERODIFUNCTIONAL LIGANDS DERIVED FROM MONOOXIDIZED BIS(PHOSPHINO)AMINES - SYNTHESIS AND TRANSITION-METAL (MOLYBDENUM(0), TUNGSTEN(0), RHODIUM(I), PALLADIUM(II), AND PLATINUM(II)) COMPLEXES OF (DIPHENYLPHOSPHINO)(DIPHENYLPHOSPHINOTHIOYL)- AND (DIPHENYLPHOSPHINO)(DIPHENYLPHOSPHINOSELENOYL)PHENYLAMINE, PH(2)PN(PH)P(E)PH(2) (E=S, SE) - CRYSTAL AND MOLECULAR-STRUCTURE OF THE PT(II) COMPLEX [CL(2)PTPPH(2)N(PH)P(S)PH(2)]CENTER-DOT-H2O [J].
BALAKRISHNA, MS ;
KLEIN, R ;
UHLENBROCK, S ;
PINKERTON, AA ;
CAVELL, RG .
INORGANIC CHEMISTRY, 1993, 32 (25) :5676-5681
[4]   Transition metal chemistry of phosphorus based ligands.: Ruthenium(II) chemistry of bis(phosphino)amines, X2PN(R)PX2 (R = H or Ph, X = Ph; R = Ph, X2 = O2C6H4) [J].
Balakrishna, MS ;
Ramaswamy, K ;
Abhyankar, RM .
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1998, 560 (1-2) :131-136
[5]   ORGANOMETALLIC CHEMISTRY OF DIPHOSPHAZANES .7. PLATINUM(II), PALLADIUM-(0), PALLADIUM-(I) AND PALLADIUM-(II) COMPLEXES OF RN[P(OPH)2]2 (R = ME OR PH) [J].
BALAKRISHNA, MS ;
KRISHNAMURTHY, SS ;
MURUGAVEL, R ;
NETHAJI, M ;
MATHEWS, II .
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1993, (03) :477-482
[6]   ORGANOMETALLIC DERIVATIVES OF DIPHOSPHINOAMINES, X2PN(R)PX2 - REACTIONS WITH CARBONYL DERIVATIVES OF GROUP-6 METALS AND IRON PENTACARBONYL - THE CRYSTAL-STRUCTURES OF [MO(CO)4PHN(P(OPH)2)2] AND [W(CO)4-ISO-PRN(PPH2)2] [J].
BALAKRISHNA, MS ;
PRAKASHA, TK ;
KRISHNAMURTHY, SS ;
SIRIWARDANE, U ;
HOSMANE, NS .
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1990, 390 (02) :203-216
[7]  
BALAKRISHNA MS, UNPUB
[8]   TRANSITION-METAL COMPLEXES OF 7-MEMBERED RING SYSTEMS .4. PROTON RESONANCE SPECTRA OF CYCLOHEPTATRIENE COMPLEXES OF GROUP VI METALS [J].
BENNETT, MA ;
WILKINSON, G ;
PRATT, L .
JOURNAL OF THE CHEMICAL SOCIETY, 1961, (MAY) :2037-+
[9]  
BERNERSPRICE SJ, 1986, CANCER RES, V46, P5486
[10]   BIS(BIDENTATE) COMPLEXES OF IMINOBIS(DIPHENYLPHOSPHINE CHALCOGENIDES) [M(N(XPPH(2))(2)-X,X')(2)] (X=S OR SE M=NI, PD OR PT) [J].
BHATTACHARYYA, P ;
NOVOSAD, J ;
PHILLIPS, J ;
SLAWIN, AMZ ;
WILLIAMS, DJ ;
WOOLLINS, JD .
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1995, (10) :1607-1613