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2006

Chemistry

William & Mary

Articles 1 - 4 of 4

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Nickel(Ii) And Cobalt(Ii) Nitrate And Chloride Networks With 2-Aminopyrimidine, Robert D. Pike, Mi Jung Lim, Ellen A. L. Wilcox, Tristan A. Tronic Nov 2006

Nickel(Ii) And Cobalt(Ii) Nitrate And Chloride Networks With 2-Aminopyrimidine, Robert D. Pike, Mi Jung Lim, Ellen A. L. Wilcox, Tristan A. Tronic

Arts & Sciences Articles

The coordination chemistry of 2-aminopyrimidine (PymNH2) with nickel(II) and cobalt(II) nitrate and chloride is reported, including seven new X-ray crystal structures. Two [Ni(NO3)2(PymNH2)2(OH2)] isomers were found (A: C2/c, a=13.3006(5), b=7.9727(3), c=28.5453(11), β=101.758(2), V=2963.48(19), Z=8 and B·1/2 acetone: P21/c, a=7.66060(10), b=10.6792(2), c=20.6790(3), β=100.2970(10), 1664.48(5), Z=4). In both cases one nitrate is monodentate and the other is chelating and the PymNH2 ligands coordinate through ring nitrogen atoms. Hydrogen bonding results in double sheet structure for isomer A, and a three dimensional channeled network for isomer B. [Co(NO3)2(PymNH2)2(OH2)] ( …

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Copper(I) Chloride Carbonyl Polymers, Austin B. Wiles, Robert D. Pike May 2006

Copper(I) Chloride Carbonyl Polymers, Austin B. Wiles, Robert D. Pike

Arts & Sciences Articles

Addition of bridging diamine ligands to methanolic solutions of CuCl under a CO purge produces the polymeric complexes [(CuCl)2(CO)2(biL)] (biL = diazabicyclo[2.2.2]octane (DABCO), piperazine (Pip), N,N‘-dimethylpiperazine (DMP)). X-ray crystal structures of the three complexes reveal rhombic OC−Cu(μ-Cl)2Cu−CO bridged by biL. Unsaturated bridging ligands fail to produce carbonyl-bearing products.

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2,2′,3,3′-Tetra­Methyl-6,6′-Biquinoxaline, Ralph N. Salvatore, Jorden P. Kass, Ricky J. Paul Gibson, Cesar H. Zambrano, Robert D. Pike, Eric E. Dueno Jan 2006

2,2′,3,3′-Tetra­Methyl-6,6′-Biquinoxaline, Ralph N. Salvatore, Jorden P. Kass, Ricky J. Paul Gibson, Cesar H. Zambrano, Robert D. Pike, Eric E. Dueno

Arts & Sciences Articles

The molecule of the title compound, C20H18N4, has twofold rotational symmetry. Each aromatic ring of the fused quinoxaline ring system is skewed from the other by 4.93 (7)°. The two quinoxaline units make a dihedral angle of 43.52 (2)°

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Bis([Mu]-Thio­Phene-2-Carbaldehyde Thio­Semicarbazonato)Bis­[Acetonitrile­Copper(I)] Bis­(Tetra­Fluoro­Borate), Robert D. Pike, Austin B. Wiles, Tristan A. Tronic Jan 2006

Bis([Mu]-Thio­Phene-2-Carbaldehyde Thio­Semicarbazonato)Bis­[Acetonitrile­Copper(I)] Bis­(Tetra­Fluoro­Borate), Robert D. Pike, Austin B. Wiles, Tristan A. Tronic

Arts & Sciences Articles

The title compound, [Cu2(C6H7N3S2)2(C2H3N)2](BF4)2, is a dimer with a central Cu2S2 core resulting from thio­semi­carbazone sulfur bridging. Both Cu-TCT units (TCT is the thio­phene-2-carboxaldehyde thio­semicarbazone anion) are roughly planar and are parallel to one another and perpendicular to the Cu2S2 plane.

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