The anion of the title salt, 2C(4)H(12)N(+)·S(2)O(3) (2-)·4H(2)O, possesses approximate C(3v) symmetry. The water mol-ecules themselves engage in hydrogen bonding, forming a ribbon running along the a axis; adjacent chains are linked to the thio-sulfate anions by hydrogen bonds, forming a three-dimensional network. The cavities in the network are occupied by the tetra-methyl-ammonium counter ions.

The title complex, tetra-aqua-{1-[(1H-benzotriazol-1-yl)meth-yl]-1H-1,2,4-triazole-κN(4)}(sulfato-κO)copper(II) sesquihydrate, [Cu(SO(4))(C(9)H(8)N(6))(H(2)O)(4)]·1.5H(2)O, is composed of one copper atom, one 1-[(2H-benzotriazol-1-yl)meth-yl]-1-H-1,2,4-triazole (bmt) ligand, one sulfate ligand, four coordin-ated water mol-ecules and one and a half uncoordinated water mol-ecules. The Cu(II) atom...

in the present of methylimidazolium hydrogen sulfate, the synthesis of arylidene heterobicyclic pyrimidinones is studied by condensation of aromatic aldehyde, cyclopentanone, and urea or thiourea. using solvent-free conditions, non-toxic and inexpensive materials, simple and clean work-up, short reaction times and good yields of the products are the advantages of this method.

in this study, oxidation of some 3,5-diacyl or 3,5-diester 1,4-dihydropyridines to corresponding pyridine derivatives using sodium bromate in the presence of nh4cl, nahso4 and bu4nhso4 under thermal conditions has been investigated. the yield and structure of formed products is similar under all conditions; however, the reaction is accelerated in the presence of bu4nhso4 and nahso4. in addition...

Microbial mats containing the filamentous anoxygenic photosynthetic bacterium Chloroflexus aggregans develop at Nakabusa hot spring in Japan. Under anaerobic conditions in these mats, interspecies interaction between sulfate-reducing bacteria as sulfide producers and C. aggregans as a sulfide consumer has been proposed to constitute a sulfur cycle; however, the electron donor utilized for micro...

an efficient, mild and environmentally friendly method was reported for the synthesis of an efficient, mild and environmentally friendly method was reported for the synthesis of pyranopyroles from aryl aldehydes, ethyl acetoacetate, malononitrile and hydrazine hydrate in the presence of catalytic amounts of methyl imidazolium hydrogen sulfate ([hmim][hso4]) as an efficient catalyst. these synth...

The Zn(II) atom in the title compound, [Zn(SO(4))(C(12)H(8)N(2))(H(2)O)(3)], is coordinated by one O atom from a sulfate dianion, two N atoms from a 1,10-phenanthroline mol-ecule and three water O atoms in an octa-hedral geometry. An intra-molecular O-H⋯O hydrogen bond occurs. Inter-molecular O-H⋯O hydrogen bonds generate a layer structure parallel to (001). There are weak C-H⋯O inter-actions w...

In the title hydrated mol-ecular salt, 2C(7)H(8)NO(2) (+)·SO(4) (2-)·H(2)O, each cation in the asymmetric unit is stabilized by an intra-molecular N-H⋯O hydrogen bond. The O atoms of the sulfate ion are disordered over two sets of sites with an occupancy ratio of 0.541 (13):0.459 (13), which possibly optimizes the acceptance of N-H⋯O hydrogen bonds from the cations. The crystal structure also f...