Transition Metal Complexes of 5-(Pyridin-2-yl)tetrazole and Methyl-Substituted 5-(Pyridin-2-yl)tetrazoles

1979 ◽  
Vol 32 (8) ◽  
pp. 1669 ◽  
Author(s):  
NS Gill ◽  
F Yang
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Magnetic Moments ◽  
Organic Ligands ◽  
X Ray Diffraction ◽  
X Ray ◽  
Structural Relationships ◽  
Visible Spectra ◽  
Diffraction Patterns

Transition metal complexes of the formulae M(ptt)2,2H2O (M = Mn, Fe, Co, Cu, Zn), M(ptt)2,- 2NH3,H2O (M = Co, Ni), FeCl(ptt),2H2O, Ag(ptt), Mn(tmptt)2,2H2O M(tmptt)2,NH3,2H2O (M = Cu, Zn)M(tmptt)2NH32H2O (M=Co, Ni), Ni(tmptt)2,2NH3,H2O, Ag(tmptt), M(smptt)2 (M = Co, Ni), Cu(smptt)2,3H2O, Cu(smptt)2,NH3,2H2O, Cu(smptt)2,2NH3, Zn(smptt)2,NH3,H2O and Ag(smptt) where ptt, tmptt and smptt are the anions of 5-(pyridin-2-yl)tetrazole, 5-(3-methylpyridin- 2-yl)tetrazole and 5-(6-methylpyridin-2 yl)tetrazole, respectively, have been prepared.Studies of the infrared and ultraviolet-visible spectra, magnetic moments and X-ray diffraction patterns show structural relationships between compounds and indicate that, in addition to the organic ligands, water and ammonia molecules are bonded to the metal ions. Thermal decomposition of the compounds proceeds through the formation of pyridinecarbonitriles.

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

1981 ◽  
Vol 46 (10) ◽  
pp. 2345-2353 ◽  
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.

Syntheses and Structure Investigations of 3d Transition Metal Complexes with a Flexible N4O2-Donor Hexadentate Schiff-Base Ligand

2017 ◽  
Vol 70 (5) ◽  
pp. 581 ◽  
Author(s):  
Kyle J. Howard-Smith ◽  
Alexander R. Craze ◽  
Mohan Badbhade ◽  
Christopher E. Marjo ◽  
Timothy D. Murphy ◽  
...  
Keyword(s):  
Schiff Base ◽  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Schiff Base Ligand ◽  
High Resolution Mass Spectrometry ◽  
Molecular Structures ◽  
X Ray Diffraction ◽  
X Ray ◽  
Structure Investigations

The syntheses and structure investigations of four new 3d transition metal complexes (1–4) with a flexible N4O2-donor hexadentate Schiff-base ligand are described; three complexes (1, 2, and 4) of FeIII, CoIII, and CuII metal ions have been investigated by UV-vis, FT-IR, high-resolution mass spectrometry (HR-MS), and scanning electron microscopy–electron dispersive spectroscopy, as well as single crystal X-ray diffraction. The X-ray structure of NiII complex 3 is also reported. The molecular structures of the complexes (1–3) demonstrate distorted octahedral coordination geometry, each exhibiting 1 : 1 (M : L) ratios and the CuII complex 4 shows a trinuclear structure with a CuII : L ratio of 3 : 2 in the solid state, which has been proven by X-ray diffraction. On the other hand, a mononuclear species of the CuII complex is formed in solution, which has been identified by electrospray ionization HR-MS.

scholarly journals Darstellung neuer Monofluorphosphine und einiger ihrer Übergangsmetallkomplexe; Einkristall-Röntgenstrukturanalyse eines Platin(II)-Komplexes / Preparation of New Monofluorophosphines and Some of their Transition Metal Complexes; Single Crystal X-Ray Diffraction Study of a Platinum(II) Complex

1993 ◽  
Vol 48 (7) ◽  
pp. 875-885 ◽  
Author(s):  
Thomas G. Meyer ◽  
Peter G. Jones ◽  
Reinhard Schmutzler
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Single Crystal ◽  
Diffraction Study ◽  
Structure Analysis ◽  
Transition Metal Complexes ◽  
Classical Method ◽  
X Ray Diffraction ◽  
X Ray

The reaction of lithiated precursors with PCl2F led to a number of monofluorophosphines, including the known di-tert-butylmonofluorophosphine, 1. Bis(phenylethinyl)monofluorophosphine (2) was accessible only via this route (the classical method of synthesizing 2 by chlorine/fluorine exchange is impossible, because the corresponding chlorophosphine is unknown). Bis(2-methoxyphenyl)fluorophosphine (5) was prepared via the organolithium/PCl2F route. The NMR results for 5 thus prepared were inconsistent with previous reports, implying that the previously reported synthesis of 5 is in error. From 5 a cis-dichloroplatinum(II) complex (6) was synthesized and subjected to a single crystal X-ray structure analysis, confirming the expected planar coordination. From bis(2,3-dimethoxynaphthyl)monofluorophosphine (7) a rhodium(I) (8) and an iron(0)tetracarbonyl complex (9) were prepared. An iron(0)tetracarbonyl complex (11) was synthesized from bis(9-anthryl)monofluorophosphine (10) which was found to be stable to redox disproportionation.

Heavy transition metal complexes of biologically important molecules. I. The crystal and molecular structure of trans-dichloro(bis(isopropyl)-sulfoxide-S)(1-methylcytosine-N)platinum(II)

1976 ◽  
Vol 54 (1) ◽  
pp. 53-58 ◽  
Author(s):  
Colin James Lyne Lock ◽  
Robert Anthony Speranzini ◽  
John Powell
Keyword(s):  
Molecular Structure ◽  
Transition Metal ◽  
Metal Complexes ◽  
Single Crystal ◽  
Least Squares ◽  
Transition Metal Complexes ◽  
Crystal And Molecular Structure ◽  
X Ray Diffraction ◽  
Full Matrix ◽  
X Ray

The crystal and molecular structure of trans-dichloro(bis(isopropyl)sulfoxide-S)(1-methylcytosine-N)platinum(II) has been determined by single crystal X-ray diffraction. The crystals are triclinic with a = 16.205(5), b = 8.078(2), c = 6.776(2) Å, α = 106.53(2), β = 96.35(2), γ = 98.54(2)°. The space group is [Formula: see text] and there are two molecules per unit cell. A total of 2294 independent reflections, of which 2023 were observed, were examined on a Syntex [Formula: see text] diffractometer. The structure was refined by full matrix least squares analysis to an R2 value of 0.0427. The ligands form a rough square around the platinum atom with Pt—Cl(1), 2.304(3), Pt—Cl(2), 2.287(4), Pt—S, 2.232(2), Pt—N, 2.058(7). Distances within the ligands are normal. The plane of the cytosine ring is at 84.4° to the plane formed by the ligands around platinum.

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