Bimetallic lanthanide complexes with lanthanide-transition metal bonds. Molecular structure of (C4H8O)(C5H5)2LuRu(CO)2(C5H5). The use of 139La NMR spectroscopy

Abstract The coordination compounds of the general formula Ln(HL)2(NO3)3, (where Ln = La - Eu (without Pm), HL = C6H5C(O)NHP(O)[N(CH3)2]2, N,Nʹ-tetramethyl-Nʺ-benzovlphosphoryl-triamide) have been synthesized and characterized by means of IR, UV-VIS, 1H, 31P NMR spectroscopy, and X-ray analysis. The complexes are isostructural according to X-ray powder diffraction studies. The crystal structure of the cerium(lll) complex has been determined. Crystal data: monoclinic, P21/c, with a = 10.503(9), b = 15.62(2), c = 21.91(2) Å, β = 99.56(8)°, Z = 4, V = 3546(6) Å3, R1= 0.0550, wR2 = 0.1383 for 6970 unique reflections used. The complex has a molecular structure. Neutral phosphoryltriamide ligands are coordinated to the metal ion in a bidentate manner via phosphoryl and carbonyl oxygen atoms with formation of six membered chelate rings. The coordination polyhedron of the Ce atom is a sphenocorona; C.N. = 10 (4 O[HL] + 6 O [NO3-]).

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ChemInform Abstract: NOVEL COMPOUNDS WITH GOLD-TRANSITION METAL BONDS; CRYSTAL AND MOLECULAR STRUCTURE OF BIS(TRIPHENYLPHOSPHINE)IMINIUM BIS(TETRACARBONYLCOBALTIO)AURATE(I)

Chemischer Informationsdienst ◽

10.1002/chin.198120068 ◽

1981 ◽

Vol 12 (20) ◽

Author(s):

R. USON ◽

A. LAGUNA ◽

M. LAGUNA ◽

P. G. JONES ◽

G. M. SHELDRICK

Keyword(s):

Molecular Structure ◽

Transition Metal ◽

Crystal And Molecular Structure ◽

Metal Bonds

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Transition-metal methylene complexes. 19. Studies on metal-metal bonds. 7. Crystal and molecular structure of .mu.-methylene-bis[dicarbonyl(.eta.5-methylcyclopentadienyl)manganese](Mn-Mn)

Inorganic Chemistry ◽

10.1021/ic00132a036 ◽

1982 ◽

Vol 21 (2) ◽

pp. 645-652 ◽

Cited By ~ 24

Author(s):

Michael. Creswick ◽

Ivan. Bernal ◽

Barbara. Reiter ◽

Wolfgang A. Herrmann

Keyword(s):

Molecular Structure ◽

Transition Metal ◽

Crystal And Molecular Structure ◽

Metal Metal ◽

Metal Metal Bonds ◽

Metal Bonds

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Übergangsmetallkomplexe mit Schwefelliganden, LXX. / Transition Metal Complexes with Sulfur Ligands, LXX.

Zeitschrift für Naturforschung B ◽

10.1515/znb-1991-1102 ◽

1991 ◽

Vol 46 (11) ◽

pp. 1449-1458 ◽

Cited By ~ 6

Author(s):

Dieter Sellmann ◽

Bernd Seubert ◽

Falk Knoch ◽

Matthias Moll

Keyword(s):

Molecular Structure ◽

Nmr Spectroscopy ◽

Transition Metal ◽

Metal Complexes ◽

Structure Analysis ◽

Transition Metal Complexes ◽

Pentagonal Bipyramid ◽

X Ray ◽

Hydrogen Bonded

In order to study specific properties of transition metal sulfur complexes, reactions of [Mo(NO)2(′S4′)] (1) with nucleophiles were investigated. With sodiumborohydride or hydrazine, 1 yields the hydroxylaminyl complex [Mo(η2-NH2O)(NO)(′S4′)] (2). 2 crystallizes from DMF as 2 · DMF whose molecular structure was determined by X-ray structure analysis (P21/c, Z = 4, a = 1204.4(3), b = 1579.7(4), c = 1253.0(4) pm, β = 117.44(2)°, R = 0,056, Rw = 0,040). The Mo centre is coordinated by two trans thiolato S, two cis thioether S atoms, the co-ligand NO and side-on NH2O in a distorted pentagonal bipyramid; the DMF molecule is hydrogen bonded to the NH2O-ligand. NMR spectroscopy shows that in solution 2 exists in two configurational isomers differing in the orientation of the side-on NH2O with respect to the [Mo(NO)(′S4′)] core. The mechanism of the reduction of 1 is discussed in terms of a 2e--2H+-transfer.

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