15513-84-5

Usage

Chemical Properties

red hexagonal [CRC10] [KIR83]

InChI:InChI=1/3HI.V/h3*1H;/q;;;+3/p-3

Upstream product

• 7440-62-2 vanadium 
• 7553-56-2 iodine 
• 10034-85-2 hydrogen iodide 
• 15513-94-7 vanadium(III) iodide 
• 1272-71-5 bis(mesitylene)vanadium⁽⁰⁾ 
• 7783-72-4 vanadium pentafluoride 
• 507-25-5 carbon tetraiodide 

Relevant academic research and scientific papers

MAGNETIC STRUCTURES AND PROPERTIES OF VI2.

Single-crystal measurements of the magnetic susceptibilities of VI//2 show an anomaly at a critical temperature of about 14 K. Neutron diffraction data show that this anomaly can be ascribed to a magnetic phase transition from a 120 degree structure to a collinear arrangement of the spins with a magnetic unit cell a//m//a//g//n equals a a square root of 3 , b//m//a//g//n equals 2a and c//m//a//g//n equals 2c.

STUDY OF FRUSTRATION EFFECTS IN TWO-DIMENSIONAL TRIANGULAR LATTICE ANTIFERROMAGNETS - NEUTRON POWDER DIFFRACTION STUDY OF VX2, X equals Cl, Br AND I.

In order to study the frustration effects, powder diffraction patterns are studied of VX//2 (X equals Cl, Br and I) considered to be quasi-two-dimensional triangular lattice antiferromagnets. The spins in VCl//2, VBr//2 and VI//2 were found to order at 36. 0, 29. 5 and 16. 3 K respectively forming a three sublattice structure in the basal plane. No critical scattering characteristic for 2D could be seen but the temperature variation of sublattice magnetization is rather close to that for the Ising system.

Coupled electrochemical method for reduction of polyols to hydrocarbons

A coupled electrochemical system and method for its use is disclosed, where a polyol feed, especially a biomass polyol containing feed is reduced in a reducing solution including HI and a metal ion capable of converting I2 to HI during polyol reduction to hydrocarbon or iodohydrocarbon products and where the metal ions are capable of electrochemical reduction so that the system can be run on a batch, semi-continuous or continuous basis. The system is capable of producing hydrocarbon solvent, fuels and lubricating oils.

Redox reactions with bis(η6-arene) derivatives of early transition metals

The reactivity of M(η6-arene)2 derivatives of early transition metals (M = Ti, Cr, Mo, arene = MeC6H5; M = V, Nb, arene = 1,3,5-Me3C6H3) has been investigated and the syntheses of new and known compounds are described. The derivatives M(CH3COO)3, M = Ti, V, Nb, Cr; M(CF 3COO)3, M = Ti, Nb, Cr; M(acac)3, M = Ti, V, Mo, acac = acetylacetonato, and M(F6acac)3, F 6acac = hexafluoroacetylacetonato, M = V, Nb have been prepared by reaction of the metal bis(arene) derivatives with the appropriate Lewis acid. The crystal and molecular structure of V(F6acac)3 has been determined. Hydrogen halides or halogens react with M(η6-arene) 2 with formation of metal halides, a highly reactive form of VCl 3 being obtained from V(η6-1,3,5-Me3C 6H3)2 and hydrogen chloride in heptane. TiCl4 oxidizes Ti(η6-arene)2 with complete loss of the arene ligands. An electron transfer process affording ionic derivatives of formula [M(η6-MeC6H5) 2][TiCl4(THF)2], M = Cr (structurally characterized), Mo, has been observed between the THF-adduct of TiCl4 and the appropriate metal-arene derivative of Group 6.

MAGNETIC SUSCEPTIBILITIES OF THE FRUSTRATED TRIANGULAR LATTICE ANTIFERROMAGNETS CsVCl3 3 AND VX2 (X equals Cl, Br AND I): APPEARANCE OF MAGNETIC LIQUID IN THE ORDERED STATE.

Magnetic susceptibilities chi have been measured by means of the conventional Faraday-type as well as SQUID magnetometers. The chi -T curve of CsVCl//3 shows a typical 1D-like character in agreement with the early work by M. Niel et al. No anisotropy could be detected below T//n. This suggests that the transition is quite different from the conventional one for the non-frustrated antiferromagnetic systems and a magnetic liquid state is formed in the ordered state.