The Copper(II) Nitrate-Pyridine System

Biagetti, Richard V.; Bottjer, William G.; Haendler, Helmut M.

doi:10.1021/ic50037a011

Cited by 34 publications

(7 citation statements)

References 1 publication

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“…The spectra of the nitrate and trifluoroacetate complexes show shifts in their visible bands to lower energies on dissolution in dichloromethane. Similar band shifts accompanying dissolution of these colnplexes in chloroform were reported previously (10,29) and were ascribed to the dissociation of pyridine. The data in Table 3 show that even in solutions containing 10% pyridine the dissociation of pyridine is not completely suppressed for these complexes.…”

Section: Electrot~ic Spectrcrsupporting

confidence: 86%

Coordinating Properties of the Fluorosulfate Ion. Tetrakis(pyridine) Complexes of Zinc(II), Copper(II), and Nickel(II) Fluorosulfates

Alleyne¹,

Thompson²

1974

Can. J. Chem.

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CARL. S. ALLEYNE and ROBERT C. THOMPSON. Can. J. Chem. 52,3218 (1974). Complexes of the type M(py),(SO,F), (py = pyridine, M = Ni, Cu, Zn) have been prepared and characterized. Infrared spectra of all three complexes, electronic spectra and magnetic susceptibility studies of the copper and nickel complexes, and e.p.r. studies of the copper coniplex are reported. The co~nplexes have tetragonally distorted octahedral structures with fluoros~llfate groups coordinated to metal ions as unidentate ligands. To facilitate comparison of the coordinating action of the fl~~orosulfate ion with other polyatomic anions the complexes, Cu(py),X, (X = C10,-, BF,-, NO3-, y-CH,C,H,S0,-3 CF,CO,-) have been prepared and their electronic properties examined. The s t~~d i e s indicate that the coordinating strength of S 0 3 F -touards metals is greater than C10,-; BF,-, and NO,-but less thanp-CH,C,H,SO,-and CF3C0,-. Electrical conductivity studies on solutions in acetonitrile indicate a correlation between the relative coordinating strength of the anion in a given complex and the extent to which thc complex undergoes ionic dissociation in this solvent. CARL S. ALLEY^^ ct ROBERT C. THOMPSON. Can. J. Cheni. 52.3218 (1974).On a prepare et caracterisk des complexes de type M(py),(SO,F), (py = pyridine, M = Ni, CLI, Zn). On rapporte aussi les spectres infrarouges des trois complexes, les spectres electroniques et les etudes de susceptibilite magnetique des complexes de cuivre et de nickel ainsi que les etudes r.p.e. des cor-r?pIexes de cuivre. Les complexes ont des structures octaedriques deforlnees tetragonalement et elles contiennent les groupes fl~~orosulfates coordonnes aux ions metalliques sous forme de ligands univalents. Afin de faciliter la comparaison de l'action coordigante de I'ion f l~~o r o s~~l f a t e avec celle d'autres anions polyatomiques, on a prepare les complexes CLI(PY),X~ (X = C10,-, BF4-, NO3-, p-CHaC6HsS03-, CF3COr-) et on a examine le~irs proprietes electroniques. Ces etudes rnontrent que la force de coordination de SO;F-vis a vis les metaux est plus grande qLie celle de C10,-, BF,-et NO3-niais plus faible que celle de p-CH,C,H,SO, et C H 3 C 0 2 . Des etudes de conductivites electriques sur des solutions dans I'acetonitrile montrent Line correlation entre les forces relatives de coordination des anions dans un complexe donnC et le taux de dissociation ionique que subit ce coniplexe dans ce solvant.[Traduit par le journal]

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Section: Electrot~ic Spectrcrsupporting

confidence: 86%

Coordinating Properties of the Fluorosulfate Ion. Tetrakis(pyridine) Complexes of Zinc(II), Copper(II), and Nickel(II) Fluorosulfates

Alleyne¹,

Thompson²

1974

Can. J. Chem.

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“…The additional bands observed in the complexes having polyatomic ions, confirm the monodentate nature of acetato [15] and nitrato [16,17] groups. The band at -320 and 300 cm -x are 610 (v4) assigned to VC~,--OAr and VC~-NO3 respectively.…”

Section: Ir Spectrasupporting

confidence: 58%

Spectral and thermal studies on copper(II) complexes of acenaphthaquinonemono(4-methylquinolinyl) hydrazone

Garg

Singh

Garg

1992

Journal of Thermal Analysis

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Cu(II) complexes of acenaphthaquinonemono(4-methylquinolinyl)hydrazone (AMH) of general composition [CuLX2] (where L =AMH; X =CI, Br, I, OAc or NO3) with the exception of sulphato complex, where the composition is found to be [CuLSO4]2 have been synthesized and characterized by elemental analyses, magnetic moment measurements, conductivity measurements, IR, electronic and EPR spectral techniques and by thermal analysis. A planar geometry is indicated for all the complexes. TG curves show one step decomposition of complexes and formation of Cu20 at the end of the step.

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“…The complexity of this problem can be illustrated by considering the pyridine-nitrate complexes. The following complexes have been prepared; Nipy3(N03)2, Copy3-(N03)2 (1, 2, 52); Znpy3{N03)2, Znpy2(N03)2, Cdpy3-(N03)2, Cd2py3(N03)4, Hgpy2(N03)2 (53); Cupy2(N03)2, Cupy4(N03)2 (54). The authors have attempted to interpret the infrared spectra of these complexes along with magnetic, electronic spectral, stoichiometrical, and other data in terms of unidentate, bidentate, or bridging nitrate groups.…”

Section: Cjmentioning

confidence: 99%