Desulfovitio d&dfUTiCam is an obligately anaerobic organism that can bc grown heterotrophically with sulfate and an organic electron donor or autotrophically with sulfate, hydrogen, and CO* (1). The presence of sulfate is obligatory for growth both with hydrogen and organic electron donors, except in the case of pyruvate (2). During growth, large amounts of sulfide are produced from the sulfate...

The structure of title compound, C(6)H(6)NO(2) (+)·HSO(4) (-), comprises discrete ions which are inter-conected by N-H⋯O and O-H⋯O hydrogen bonds, leading to a neutral one-dimensional network along [001]. These hydrogen bonds appear to complement the Coulombic inter-action and help to stabilize the structure further.

All non-H atoms of the cation of the title salt, C(6)H(5)N(2) (+)·HSO(4) (-), are essentially coplanar [r.m.s. deviation = 0.005 (1) Å] . In the crystal, N-H⋯O and O-H⋯O hydrogen bonds and weak C-H⋯O and C-H⋯N inter-actions link the mol-ecules into a two-dimensional network parallel to the (001) plane. Weak π-π stacking inter-actions between the pyridine rings of neighbouring mol-ecules further...

In the title salt, C(7)H(8)N(3) (+)·HSO(4) (-), the benzimdazole ring system is planar [mean deviation 0.0086 (1) Å]. In the crystal, N-H⋯O and O-H⋯O hydrogen-bond inter-actions give rise to a layer motif.