The Experts below are selected from a list of 543 Experts worldwide ranked by ideXlab platform

Robert D Pike - One of the best experts on this subject based on the ideXlab platform.

  • copper i thiocyanate networks with Aliphatic Sulfide ligands
    Polyhedron, 2016
    Co-Authors: Gerardo Ayala, Robert D Pike
    Abstract:

    Abstract A total of five new CuSCN-L compounds with alkyl Sulfide ligands, L = methyl Sulfide (Me 2 S), ethyl Sulfide (Et 2 S), isopropyl Sulfide (Pr i 2 S) or tetrahydrothiophene (THT) have been prepared and characterized. X-ray crystal structures for four of the compounds were obtained. Two compounds were collected from solutions of CuSCN in Me 2 S: {[Cu(SCN)(Me 2 S) 2 ]} n ( 1a ) in the form of colorless blocks and (CuSCN)(Me 2 S) ( 1b ) as a white powder. Neat mixtures of CuSCN in the other alkyl Sulfide ligands yielded only one product each: {[Cu(SCN)(Et 2 S)]} n ( 2 ); {[Cu(SCN)(Pr i 2 S)]} n ( 3 ); and {[Cu(SCN)(THT) 2 ]} n ( 4 ). Crystals of 2 and 4 underwent destructive phase changes at lower temperatures. Two networks types were observed: 1:2 decorated 1-D chains ( 1a and 4 ) and 1:2 decorated 1-D ladders ( 2 and 3 ). Further network formation through bridging of the organic Sulfide ligands was not observed.

Gerardo Ayala - One of the best experts on this subject based on the ideXlab platform.

  • copper i thiocyanate networks with Aliphatic Sulfide ligands
    Polyhedron, 2016
    Co-Authors: Gerardo Ayala, Robert D Pike
    Abstract:

    Abstract A total of five new CuSCN-L compounds with alkyl Sulfide ligands, L = methyl Sulfide (Me 2 S), ethyl Sulfide (Et 2 S), isopropyl Sulfide (Pr i 2 S) or tetrahydrothiophene (THT) have been prepared and characterized. X-ray crystal structures for four of the compounds were obtained. Two compounds were collected from solutions of CuSCN in Me 2 S: {[Cu(SCN)(Me 2 S) 2 ]} n ( 1a ) in the form of colorless blocks and (CuSCN)(Me 2 S) ( 1b ) as a white powder. Neat mixtures of CuSCN in the other alkyl Sulfide ligands yielded only one product each: {[Cu(SCN)(Et 2 S)]} n ( 2 ); {[Cu(SCN)(Pr i 2 S)]} n ( 3 ); and {[Cu(SCN)(THT) 2 ]} n ( 4 ). Crystals of 2 and 4 underwent destructive phase changes at lower temperatures. Two networks types were observed: 1:2 decorated 1-D chains ( 1a and 4 ) and 1:2 decorated 1-D ladders ( 2 and 3 ). Further network formation through bridging of the organic Sulfide ligands was not observed.

John W. Larsen - One of the best experts on this subject based on the ideXlab platform.

  • sulfur speciation in different kerogens by xanes spectroscopy
    Energy & Fuels, 2005
    Co-Authors: Roger Wiltfong, Sudipa Mitrakirtley, Oliver C Mullins, Ballard A Andrews, Go Fujisawa, John W. Larsen
    Abstract:

    X-ray absorption near-edge structure (XANES) methodology has been employed to quantify the different sulfur structures present in three Type I and three Type II kerogens. Kerogens from the Green River (3), Bakken (1), Woodford (1), and Indiana limestone (1) formations were studied. Both Aliphatic (Sulfide) and aromatic (thiophene) forms of sulfur exist in all these kerogen samples. Except for Woodford, all of the kerogens contain oxidized functional groups. Sulfur in Types I and II kerogens mimics the carbon chemistry in that the sulfur structures are more aromatic in Type II than in Type I. It was impossible to differentiate elemental sulfur from pyrite in these samples by using K-edge XANES.

Roger Wiltfong - One of the best experts on this subject based on the ideXlab platform.

  • sulfur speciation in different kerogens by xanes spectroscopy
    Energy & Fuels, 2005
    Co-Authors: Roger Wiltfong, Sudipa Mitrakirtley, Oliver C Mullins, Ballard A Andrews, Go Fujisawa, John W. Larsen
    Abstract:

    X-ray absorption near-edge structure (XANES) methodology has been employed to quantify the different sulfur structures present in three Type I and three Type II kerogens. Kerogens from the Green River (3), Bakken (1), Woodford (1), and Indiana limestone (1) formations were studied. Both Aliphatic (Sulfide) and aromatic (thiophene) forms of sulfur exist in all these kerogen samples. Except for Woodford, all of the kerogens contain oxidized functional groups. Sulfur in Types I and II kerogens mimics the carbon chemistry in that the sulfur structures are more aromatic in Type II than in Type I. It was impossible to differentiate elemental sulfur from pyrite in these samples by using K-edge XANES.

Pike, Robert D - One of the best experts on this subject based on the ideXlab platform.

  • Copper(I) thiocyanate networks with Aliphatic Sulfide ligands
    W&M ScholarWorks, 2017
    Co-Authors: Ayala Gerardo, Pike, Robert D
    Abstract:

    A total of five new CuSCN-L compounds with alkyl Sulfide ligands, L = methyl Sulfide (Me2S), ethyl Sulfide (Et2S); isopropyl Sulfide ((Pr2S)-S-i) or tetrahydrothiophene (THT) have been prepared and characterized. X-ray crystal structures for four of the compounds were obtained. Two compounds were collected from solutions of CuSCN in Me2S: {[Cu(SCN)(Me2S)(2)]}(n) (1a) in the form of colorless blocks and (CuSCN)(Me2S) (1b) as a white powder. Neat mixtures of CuSCN in the other alkyl Sulfide ligands yielded only one product each: {[Cu(SCN)(Et2S]}(n). (2); {[Cu(SCN)((Pr2S)-S-i)])(n). (3); and fiCu(SCN)(THT)(2)]}(n) (4). Crystals of 2 and 4 underwent destructive phase changes at lower temperatures. Two networks types were observed: 1:2 decorated 1-D chains (la and 4) and 1:2 decorated 1-D ladders (2 and 3). Further network formation through bridging of the organic Sulfide ligands was not observed. (C) 2016 Elsevier Ltd. All rights reserved