Transition-metal complexes with sulfur ligands. 57. Stabilization of high-valent iron(IV) centers and vacant coordination sites by sulfur .pi.-donation: syntheses, x-ray structures, and properties of [Fe("S2")2(PMe3)n] (n = 1, 2) and (NMe4)[Fe("S2")2-(PMe3)2].cntdot.CH3OH ("S2"2- = 1,2-benzenedithiolate (2-)). [Erratum to document cited in CA114(22):220083s]

Two isostructural transition metal complexes based on the 4,4'-{[2,2'-(ethane-1,2-bicarboxymethyl)] amino-bis (acetyl)} dibenzoic acid (H4L) were synthesized under hydrothermal conditions, namely, [M(H2L)(H2O)]·3H2O (M=Ni, 1 ; Co, 2). The two compounds were structurally characterized by infrared spectra, thermogravimetric analysis and single crystal X-ray diffractions. Compounds 1-2 are mononuclear units and further extended to generate the two dimensional structures by hydrogen-bonds and π-π interactions. Compounds 1 exhibit the high thermal stability.

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ChemInform Abstract: Stabilization of High-Valent Transition-Metal Complexes with Macrocyclic Tertiary Amines. Reinvestigation of the Synthesis, Electrochemistry, and Spectroscopy of Osmium(III) Macrocyclic Amine Complexes and X-Ray Crystal Structure of t

ChemInform ◽

10.1002/chin.198740324 ◽

1987 ◽

Vol 18 (40) ◽

Author(s):

C.-M. CHE ◽

W.-K. CHENG ◽

T.-F. LAI ◽

C.-K. POON ◽

T. C. W. MAK

Keyword(s):

Crystal Structure ◽

Transition Metal ◽

Metal Complexes ◽

Transition Metal Complexes ◽

Tertiary Amines ◽

X Ray ◽

Amine Complexes ◽

High Valent

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Stabilization of high-valent transition-metal complexes with macrocyclic tertiary amines. Reinvestigation of the synthesis, electrochemistry, and spectroscopy of osmium(III) macrocyclic amine complexes and x-ray crystal structure of trans-[OsIII(16-TMC)Cl2]ClO4 (16-TMC = 1,5,9,13-tetramethyl-1,5,9,13-tetraazacyclohexadecane)

Inorganic Chemistry ◽

10.1021/ic00258a010 ◽

1987 ◽

Vol 26 (11) ◽

pp. 1678-1683 ◽

Cited By ~ 10

Author(s):

Chi Ming Che ◽

Wing Kin Cheng ◽

Ting Fong Lai ◽

Chung Kwong Poon ◽

Thomas C. W. Mak

Keyword(s):

Crystal Structure ◽

Transition Metal ◽

Metal Complexes ◽

Transition Metal Complexes ◽

Tertiary Amines ◽

X Ray ◽

Amine Complexes ◽

High Valent

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Preparation, properties and structure of some intermediate nido- and arachno-monocarbaboranes

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19812345 ◽

1981 ◽

Vol 46 (10) ◽

pp. 2345-2353 ◽

Cited By ~ 33

Author(s):

Karel Baše ◽

Bohumil Štíbr ◽

Jiří Dolanský ◽

Josef Duben

Keyword(s):

Transition Metal ◽

Metal Complexes ◽

Transition Metal Complexes ◽

Nmr Spectra ◽

Liquid Ammonia ◽

X Ray Diffraction ◽

X Ray ◽

H Nmr ◽

Starting Compound

The 6-N(CH3)3-6-CB9H11 carbaborane reacts with sodium in liquid ammonia with the formation of 6-CB9H12- which was used as a starting compound for preparing the 4-CB8H14, 9-L-6-CB9H13 (L = (CH3)2S, CH3CN and P(C6H5)3), 1-(η5-C5H5)-1,2-FeCB9H10-, and 2,3-(η5-C5H5)2-2,31-Co2CB9H10- carboranes. The 4-CB8H14 compound was dehydrogenated at 623 K to give 4-(7)-CB8H12 carborane. Base degradation of 6-N(CH3)3-6-CB9H11 in methanol resulted in the formation of 3,4-μ-N(CH3)3CH-B5H10. The structure of all compounds was proposed on the basis of their 11B and 1H NMR spectra and X-ray diffraction was used in the case of the transition metal complexes.

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