The crystal structure of the title compound, C(7)H(20)N(2) (2+)·SO(4) (2-)·H(2)O, is presented, with particular focus on the packing arrangement in the crystal structure and selected hydrogen-bonding inter-actions that the compound forms. The crystal structure exhibits parallel stacking of the diammonium dication in its packing arrangement, together with inorganic-organic layering that is typic...

The microbial consortia from produced water at two different oil fields in Alaska (Kuparuk) and the North Sea (Ninian) were investigated for sulfate-reducing and methanogenic activity over a range of temperatures and for a variety of substrates. The consortia were sampled on site, and samples were either incubated on site at 60(deg)C with various substrates or frozen for later incubation and an...

an efficient, mild and environmentally friendly method was developed for the strecker reaction to synthesize α-aminonitriles in the presence of methyl imidazolium hydrogen sulfate ([hmim][hso4]) as an efficient catalyst. these syntheses were performed via a one-pot three-component condensation of aldehydes (or ketones), amines, and trimethylsilyl cyanide under mild and solvent free conditions.

In the title complex, [Cd(SO(4))(C(9)H(8)N(6))(H(2)O)(4)]·2H(2)O, the Cd(II) ion is six-coordinated by one N atom from a 1-[(1H-1,2,3-benzotriazol-1-yl)meth-yl]-1H-1,2,4-triazole ligand and by five O atoms from four water mol-ecules and one monodentate sulfate anion in a distorted octa-hedral geometry. The sulfate tetra-hedron is rotationally disordered over two positions in a 0.651 (12):0.349 ...

The title compound, [Ni(SO(4))(C(5)H(5)N)(H(2)O)(3)](n), was synthesized by the hydro-thermal reaction of NiSO(4)·6H(2)O, pyridine and water. The central Ni(II) atom is coordinated in a distorted octa-hedral environment by a pyridine N atom, three aqua O atoms and two O atoms of bridging sulfate anions, yielding a zigzag chain. A three-dimensional network is generated via complex hydrogen bonds...

The Ni atom in the title complex, [Ni(SO(4))(C(15)H(13)N(5))(H(2)O)]·H(2)O, has a distorted trigonal-bipyramidal coordination formed by the tridentate 2,6-bis-(2-pyridylamino)pyridine (tpdaH(2)) ligand, one sulfate and one coordinated water mol-ecule. The tpdaH(2) ligand is three-coordinated, with the N atom of the central pyridine ring in the equatorial position [Ni-N = 1.9961 (14) Å] and the ...

The structure of the title compound, known as quinine sulfate dihydrate, 2C(20)H(25)N(2)O(2) (+)·SO(4) (2-)·2H(2)O, was previously reported by Mendel [Proc. K. Ned. Akad. Wet. (1955), 58, 132-134], but only the [010] projection was determined. Hence, we have redetermined its crystal structure at 100 K using three-dimensional data. The asymmetric unit consists of a quininium cation, viz. (R)-(6-...

The title solvated salt, C21H17N7 (2+)·SO4 (2-)·CH3OH, was obtained when we attempted to prepare the complex of ferrous sulfate and 2,6-bis-[3-(pyridin-2-yl)-1H-pyrazol-1-yl]pyridine in methanol. The dihedral angles between adjacent pyridine and pyrazole rings range from 3.8 (1) to 13.4 (1)°. An intra-molecular N-H⋯N hydrogen bond occurs. In the crystal, N-H⋯O and O-H⋯N hydrogen bonds between s...

The title compound, {[Ni(SO4)(C6H16N2)(H2O)2]·H2O} n , contains a Ni(II) atom that is coordinated nearly octa-hedrally by a chelating tetra-ethyl-enediamine (tmeda) ligand, two water mol-ecules in a cis arrangement and two O atoms of two sulfate anions in a trans arrangement. The sulfate anions act as μ2-bridging ligands leading to a chain structure of alternating NiO4N2 octa-hedra and SO4 tetr...

The asymmetric unit of the title compound, 2C20H22N3O3(+)·SO4(2-)·H2O, contains four cations, two sulfate anions and two lattice water mol-ecules. One of the four cations shows a different conformation of the hy-droxy-ethyl group; the remaining three are all essentially superimposable. Two cations exhibit two-site orientational disorder [ratios = 0.524 (5):0.476 (5) and 0.616 (6):0.384 (6)] of ...