Some studies in inorganic complexes. III. Antimony(III), Arsenic(III), and Phosphorus (III)

1958 ◽  
Vol 11 (4) ◽  
pp. 420 ◽  
Author(s):  
GJ Sutton
Keyword(s):  
Molecular Weight ◽  
Chelating Ligand ◽  
Inorganic Complexes

A study has been made of complexes of the halides of antimony, arsenic, and phosphorus with the chelating ligand o-phenylenebisdimethylarsine. Conductivity and molecular weight determinations in nitrobenzene show that these are &covalent monomers of the type SbX3.D, AsX3D, and PX3.D, in which X is halogen and D is diarsine. However, in this solvent there is a progressive tendency towards ionization from Sb to P and from Cl to I, so that the iodo complexes of arsenic and phosphorus are partly ionized as [AsI2D]+I- and [PI2D]+I- respectively. This is also in accordance with the preparation of the perchlorate [AsI2D]+[ClO4]-.H2O from the complex [AsI2D]+I-. A study was also made of the phenanthrolinium salts [phenanH.H2O]+[SbX4]-, although no compounds were obtained in which the base is coordinated to the metal.

Electrochemical studies of reactive polyanionic chelating ligand complexes in liquid sulfur dioxide. Formation of highly oxidizing inorganic complexes

1987 ◽  
Vol 26 (7) ◽  
pp. 1157-1160 ◽  
Author(s):  
Fred C. Anson ◽  
Terrence J. Collins ◽  
Stephen L. Gipson ◽  
John T. Keech ◽  
Terry E. Krafft
Keyword(s):  
Sulfur Dioxide ◽  
Electrochemical Studies ◽  
Liquid Sulfur ◽  
Chelating Ligand ◽  
Inorganic Complexes

Some studies in inorganic complexes. XVII. 2-Thioamidopyridine complexes of copper(I) and copper(II)

1964 ◽  
Vol 17 (12) ◽  
pp. 1360 ◽  
Author(s):  
GJ Sutton
Keyword(s):  
Copper Complexes ◽  
Magnetic Measurements ◽  
Chelating Ligand ◽  
Absorption Studies ◽  
Inorganic Complexes

The following copper complexes of the chelating ligand 2-thioamidopyridine (thiopic) have been prepared and studied: [Cuthiopic2][CuX2], where X = Cl, Rr, I, and SCN (two isomers); [Cuthiopic2]I; [Cuthiopic2ClO4].ClO4.H2O; [Cuthiopic2OH]ClO4; [Cuthiopic2NO3]NO3.H2O; [Cuthiopic2NO3]PF6.H2O; and [Cuthiopic2][PF6]2. 4H2O. Conductance measurements in nitrobenzene, nitromethane, and ethanol; and absorption studies in the infrared, visible, and ultraviolet regions of the spectrum were carried out and magnetic measurements were also determined.

Some Studies in Inorganic Complexes. VIII. Cobalt(II) and Cobalt(III) with 2-Picolylamine

1960 ◽  
Vol 13 (4) ◽  
pp. 473 ◽  
Author(s):  
GJ Sutton
Keyword(s):  
Magnetic Susceptibility ◽  
Absorption Spectra ◽  
Visible Region ◽  
Cobalt Atom ◽  
Octahedral Complex ◽  
Solution Stability ◽  
Chelating Ligand ◽  
Inorganic Complexes

Complexes of cobalt(II) and (III) with the chelating ligand 2-picolylamine have been prepared and studied. Those of cobalt(II) are Copic3(ClO4)2 and CopicI2.2H2O, where pic is the ligand 2-picolylamine. Measurements of magnetic susceptibility have shown that in both of these the cobalt atom is spin-free, giving rise to momenta of 4.8 and 4.9B.M. respectively. By means of conductance measurements in water, methanol, nitromethane, and nitrobenzene, it has been shown that the former is an octahedral complex and the latter, whilst probably octahedral, could be tetrahedral. The cobalt(III) complexes described include [Copic3](ClO4)3, [Copic2Cl2]Cl.HCl, [Copic2Cl2]Cl, [Copic2(NO2)2]NO3.�H2O, [Copic2(NO2)2]NO2, and [Copic2(H2O)2](ClO4)2. By means of the above measurements it has been shown that all the latter are diamagnetic octahedral complexes. A study of absorption spectra in the visible region, in the above solvents where possible, has also been made and the results correlated to solution stability. Attempts to resolve the Copic33+ complex into its enantiomorphs were unsuccessful.

Some studies in inorganic complexes. IV. Titanium(III) and Titanium(IV)

1959 ◽  
Vol 12 (2) ◽  
pp. 122 ◽  
Author(s):  
GJ Sutton
Keyword(s):  
Molecular Weight ◽  
Conductivity Measurements ◽  
Titanium Complexes ◽  
Inorganic Complexes

The titanium complexes TiCl3.D.H2O, TiBr3.D.H2O, TiCl4.D, and TiBr4.D, In which D is o-phenylenebisdimethylarsine. have been prepared and studied. By means of conductivity and molecular weight measurements, it has been shown that they are 6-covalent non-electrolytes. The thiocyanato complexes [NH4][Ti(SCN)4(H2O)2,], [NH4][Ti(SCN)4], and [NH4][Ti(SCN)4OH.H2O] were also prepared and their structures verified by conductivity measurements.

Optisch aktive Übergangsmetall-Komplexe, XXII

1973 ◽  
Vol 28 (9-10) ◽  
pp. 606-609 ◽  
Author(s):  
Henri Brunner ◽  
Wolfgang A. Herrmann
Keyword(s):  
Molecular Weight ◽  
Schiff Base ◽  
Mass Spectra ◽  
Pyramidal Structure ◽  
H Nmr ◽  
Chelating Ligand ◽  
Analogous Compound ◽  
Hydroxy Quinoline ◽  
Pyridine Carbaldehyde

Upon irradiation of C5H5V(CO)4 in the presence of the Schiff base, derived from pyridine-carbaldehyde (2) and S-(—)-α-methylbenzyl-amine, two cis CO groups are replaced by the chelating ligand with the formation of complex 3. The reaction of C5H5W(CO)3Cl with 8-hydroxy-quinoline in boiling THF yields the oxinato complex 4. The analogous compound 5 is obtained in the reaction of C5H5Mo(CO)3Cl with 7-carboxy-8-hydroxyquinoline.The new asymmetric complexes with square pyramidal structure are characterised by C, H, N analyses, molecular weight determinations, IR, 1H NMR, UV and mass spectra.

Some Studies in Inorganic Complexes. V. Mercury(II)

1959 ◽  
Vol 12 (4) ◽  
pp. 637 ◽  
Author(s):  
GJ Sutton
Keyword(s):  
Molecular Weight ◽  
Absorption Spectra ◽  
Ultra Violet ◽  
Inorganic Complexes

A study has been made of mercury(II) complexes of ethylenediamine, 1,10-phenanthroline, and 2,2'-dipyridyl. By means of conductance and molecular weight measurements it has been shown that complexes of the type HgX2.B and HgY.B, in which B is the base, X is halogen or nitrite, and Y is oxalate or sulphate, are 4-covalent non-electrolytes. The absorption spectra of the halogen complexes in the near ultra-violet range are characteristic of the chelate with a shift of absorption to longer wavelengths. Bisphenanthroline and bisdipyridyl complexes of mercury(II) were also investigated.

Some studies in inorganic complexes. XXVI. Complexes of 6-Methyl-2-thioamidopyridine

1971 ◽  
Vol 24 (5) ◽  
pp. 919 ◽  
Author(s):  
GJ Sutton
Keyword(s):  
Infrared Spectra ◽  
Magnetic Measurements ◽  
Visible Spectrum ◽  
Sulphur Atom ◽  
Chelating Ligand ◽  
Inorganic Complexes

Several complexes of the chelating ligand 6-methyl-2-thioamidopyridine have been prepared end studied. Infrared spectra indicate that the sulphur atom of the thioamido group is bonding in the complexes: [CoL2(H2O)2][ClO4]2, [NiL2Br2], [CuL2]I, [Ru2L4Cl2O]Cl2, [OsL2Cl2], [AuL][AuCl1], and [HgLI2] whereas nitrogen bonding occurs with [FeLCl3]2, [ZnL3][ClO4]2, [SnLI4], and the deprotonated species [In(L-H)3]. Copper(II) was reduced to copper(I), e.g. [CuL2][CuBr2]. Studies in the visible spectrum, magnetic measurements, and conductances in both nitrobenzene and dimethylformamide were also made.

Some studies in inorganic complexes. II. Bismuth(III)

1958 ◽  
Vol 11 (4) ◽  
pp. 415 ◽  
Author(s):  
GJ Sutton
Keyword(s):  
Molecular Weight ◽  
Coordination Complex ◽  
Inorganic Complexes ◽  
Covalent Complex

Complexes of bismuth halides and the ligand o-phenylenebisdimethylarsine have been prepared and studied. Conductivity and molecular weight determinations show that they are 5-covalent monomers of the type BiX3.diarsine in which X is halogen. A study was also made of the &covalent complex Bi diarsine3(ClO4)3. No coordination complex of phenanthroline was obtained, but some phenanthrolinium and dipyridylium salts of the type [phenan H.H2O]+[BiX4]- and [dipy H.H2O]+[BiCl4]- were investigated.

Some Studies in Inorganic Complexes. VI. Nickel(II) with 2-Picolylamine

1960 ◽  
Vol 13 (1) ◽  
pp. 74 ◽  
Author(s):  
GJ Sutton
Keyword(s):  
Solid State ◽  
Absorption Spectra ◽  
Magnetic Measurements ◽  
Visible Spectrum ◽  
Ultraviolet Region ◽  
Near Ultraviolet ◽  
Chelating Ligand ◽  
Inorganic Complexes ◽  
Solvent Molecules

Complexes of the type Nipic2X2, Nipic3X2.nH2O, and Nipic3(ClO4)2.H2O have been prepared and studied, where X is Cl, Br, or I and pic is the chelating ligand 2-picolylamine. Conductance measurements in nitrobenzene, nitromethane, methanol, and water show that the blue compounds Nipic2X2, whilst being hexacovalent complexes in the solid state, are progressively ionized in the respective solvents as halogen is replaced by solvent molecules. Conductance measurements also verified a hexacovalent structure for the Ni pic32+ ion complex whose salts are bi-univalent electrolytes. Magnetic measurements show that a11 the complexes are paramagnetic with a mean moment of 3.0 B.M. Their absorption spectra in the near ultraviolet region are characteristic of that of the ligand. A study in the visible spectrum was also made.

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