Some Studies in Inorganic Complexes. XII. Manganese(II) and Iron(II) with 2-Aminomethylpyridine (2-Picolylamine)

1961 ◽  
Vol 14 (4) ◽  
pp. 550 ◽  
Author(s):  
GJ Sutton
Keyword(s):  
Magnetic Susceptibility ◽  
Metal Atom ◽  
Manganese Complexes ◽  
Ultraviolet Region ◽  
Coordinate Structure ◽  
Near Ultraviolet ◽  
Metal Atoms ◽  
Inorganic Complexes ◽  
Free Metal ◽  
Iron And Manganese

Almost colourless complexes of the type [MnpicCl2], [Mnpic2X2], [Mnpic3]I2 and [Mnpic3][ClO4]2, as well as the brown complexes [Fepic3]Br2 and [Fepic3]I2 have been prepared and studied ; pic being the chelating ligand 2-picolylamine (2-aminomethyl-pyridine) and X the halogen. Conductance and absorption spectroscopy in the near-ultraviolet region measurements, using nitromethane as solvent, indicate that all complexes investigated have a 6-coordinate structure, excepting the chloride [MnpicCl2], the structure of which is uncertain. The latter substance could be tetrahedral or octahedral by polymerization. This substance as well as the bischelate complexes behave as non-electrolytes in nitromethane, although they are ionized to bi-univalent electrolytes in methanol. The complexes containing three molecules of ligand to metal atom are bi-univalent electrolytes in both solvents. Measurements of magnetic susceptibility show that both the iron and manganese complexes have spin-free metal atoms.

Some Studies in Inorganic Complexes. XIV. Reactions of 2-Methyl-6-aminopyridine and 2-Thioamidopyridine with Some Transition Metal Ions

1963 ◽  
Vol 16 (3) ◽  
pp. 371 ◽  
Author(s):  
GJ Sutton
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Absorption Spectra ◽  
Copper Complexes ◽  
Transition Metal Ions ◽  
The Other ◽  
Ultraviolet Region ◽  
Chelating Ligands ◽  
Near Ultraviolet ◽  
Inorganic Complexes

The following complexes of the chelating ligands 2-methyl-6-aminomethylpyridine (6-methyl-2-picolylamine or mepic) and 2-thioamidopyridine (thiopic) have been prepared and studied: [Cu mepic2X]X, where X = Cl, Br, I, NO3, ClO4, [Cu mepic2C2O4], [Ni mepic3][ClO4]2, [M(II) thiopic3][ClO4]2, [M(III) thiopic3][ClO4]3, (M(II) = Co, Ni; M(III) = CO, Fe), and [Co thiopic3]Cl2. Conductance measurements in ethanol, nitromethane, and nitrobenzene indicate that the [Cu mepic2X]X complexes are 5-covalent whilst the other complexes studied are 6-covalent. All the complexes are "spin free" excepting those of Co(III). Absorption spectra of the copper complexes in the near ultraviolet region were also made.

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.

Achieving 17.38% efficiency of ternary organic solar cells enabled by a large-bandgap donor with noncovalent conformational lock

2021 ◽  
Author(s):  
Linyong Xu ◽  
Wuxi Tao ◽  
Heng Liu ◽  
Junhua Ning ◽  
Meihua Huang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Ultraviolet Region ◽  
Near Ultraviolet

A large-bandgap donor BTBR-2F based on noncovalent conformational lock has been designed and synthesized to achieve more complementary absorption with the PM6: Y6 blend in the near-ultraviolet region. The ternary...

MAGNETIC SUSCEPTIBILITY OF TRIS(2,2′-DIPYRIDYL)MANGANESE COMPLEXES HAVING AN ANOMALOUS VALENCY OF MANGANESE

1974 ◽  
Vol 3 (5) ◽  
pp. 419-422 ◽  
Author(s):  
Ken-ichi Hara ◽  
Motomichi Inoue ◽  
Tatsuo Horiba ◽  
Masaji Kubo
Keyword(s):  
Magnetic Susceptibility ◽  
Manganese Complexes

Effects of reactive gas addition on ionization of metal atoms in droplet-free metal ion sources

2007 ◽  
Vol 201 (15) ◽  
pp. 6655-6659 ◽  
Author(s):  
Keiji Nakamura ◽  
Akira Wakayama ◽  
Ken Yukimura
Keyword(s):  
Metal Ion ◽  
Ion Sources ◽  
Metal Atoms ◽  
Free Metal ◽  
Free Metal Ion ◽  
Reactive Gas

Hexaruthenium and octaruthenium carbonyl cluster complexes derived from 2-amino-6-methylpyridine — Novel coordination modes for 2-imidopyridines

2006 ◽  
Vol 84 (2) ◽  
pp. 105-110 ◽  
Author(s):  
Javier A Cabeza ◽  
Ignacio del Río ◽  
Pablo García-Álvarez ◽  
Daniel Miguel
Keyword(s):  
Metal Atom ◽  
Cluster Compounds ◽  
Carbonyl Cluster ◽  
Amido Ligands ◽  
Ruthenium Cluster ◽  
Coordination Type ◽  
Metal Atoms ◽  
Pyridine Nitrogen ◽  
Cluster 2 ◽  
Reflux Temperature

The hexanuclear ruthenium cluster [Ru6(µ3-H)2(µ-H)2(µ4-κ2-ampy)2(CO)14] (1) and the octanuclear one [Ru8(µ-H)(µ4-κ2-ampy)3(µ3-κ2-Hampy)(µ-CO)2(CO)15] (2) have been prepared by treating [Ru6(µ3-H)2(µ5-κ2-ampy)(µ-CO)2(CO)14] with 2-amino-6-methylpyridine (H2ampy) in decane at reflux temperature. Their metal atoms are supported by ligands that derive from the activation of one (complex 2) or both N—H bonds (complexes 1 and 2) of the H2ampy amino fragment. Both contain at least one ampy ligand featuring an unprecedented coordination type: the imido N atom caps a triangle of metal atoms while the pyridine nitrogen is attached to an additional metal atom. One of the ampy ligands of cluster 2 also displays another unprecedented coordination type: it caps a distorted square of metal atoms through the imido N atom while the pyridine nitrogen is attached to one of the atoms included in that square.Key words: ruthenium, cluster compounds, amido ligands, imido ligands.

Sign in / Sign up

Export Citation Format

Share Document