Russell G. Baughman

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The development of chiral ligands to direct the course and stereoselectivity of many catalytic asymmetric reactions is an important area of interest for many research groups. As part of a program examining the chemistry of 2,1-benzothiazines, we have prepared a new chiral benzothiazine ligand. This ligand can be made in as few as three steps from(More)
The crystal structure of the title compound, C(13)H(15)N(3)O(3) x C(3)H(7)NO, was determined as part of a larger project focusing on creatinine derivatives as potential pharmaceuticals. The molecule is essentially planar, in part because of intramolecular hydrogen bonding. Inversion-related pairs of molecules result from intermolecular hydrogen bonding. The(More)
The title structure,[IrCl(C(8)H(12))(C(14)H(10)F(5)P)], reveals that (C(2)F(5))PPh(2) (penta-fluoro-ethyl-diphenyl-phosphane or pfepp) disrupts the iridium dimer [(cod)IrCl](2) (cod = cyclo-octa-1,5-diene) by rupturing the bridging chloride ligands and binding in the open coordination site to form (cod)Ir(pfepp)Cl with the Ir(I) atom in a distorted(More)
In the title urea-based herbicide, C(9)H(10)BrClN(2)O(2), there exist multiple inter- and intra-molecular inter-actions. Most notably, the intra-molecular hydrogen bond between the urea carbonyl O atom and an aromatic H atom affects the planarity and torsion angles of the mol-ecule by restricting rotations about the Ar-secondary amine N and the secondary(More)
The crystal structures of two brominated derivatives of 4-amino-N-butyl-1,8-naphthalenedicarboximide [alternative systematic names: 8-bromo-2-butyl-7-butylamino-1H-benzo[de]isoquinoline-1,3(2H)-dione, C20H23BrN2O2, and 7-amino-8-bromo-2-butyl-1H-benzo[de]isoquinoline-1,3(2H)-dione, C16H15BrN2O2] are reported. The N-butyl groups, which are common to both(More)
In the title molecular salt, C(7)H(14)N(5)O(+)·Cl(-) (the HCl salt of the oxo derivative of the triazine herbicide simazine), the cation and anion are linked by N-H⋯Cl hydrogen bonds. The chloride ion is also involved in a close electrostatic inter-action with an inversion-related triazine ring [Cl⋯centroid distance = 3.201 (1) Å]. A π-π inter-action having(More)
Structural studies performed in this laboratory of organophosphorus pesticides continue with these related compounds. The -NO2 groups of methyl parathion (systematic name: dimethyl 4-nitrophenyl phosphorothioate, C8H10NO5PS) and dicapthon (systematic name: 2-chloro-4-nitrophenyl dimethyl phosphorothioate, C8H9ClNO5PS) make dihedral angles of 10.67 (8) and(More)
In the title compound, C(12)H(13)NO(4)S, a systemic fungicide, the heterocycle adopts a lounge chair conformation and the dihedral angle between the ring planes is 25.8 (2)°. Inter-molecular C-H⋯O hydrogen bonds are noted in the crystal structure. Also observed is a short inter-action of a methyl-ene hydrogen atom with the π-electron system of a phenyl ring(More)