In the title compound, (C(4)H(12)N(2))[AuCl(4)](2)·2H(2)O, the Au(III) atom has a square-planar geometry. The piperazinium dication lies on an inversion centre and adopts a typical chair conformation. In the crystal, a combination of N-H⋯O, N-H⋯Cl and O-H⋯Cl hydrogen bonds results in the formation of a three-dimensional network.

The title molecular salt, C(4)H(12)N(2) (2+)·C(10)H(6)O(6)S(2) (2-), consists of a piperazinium cation and a 1,5-naphthalene-disulfonate anion. Crystallographic inversion centers are situated at the center of the ring of the dication as well as at the midpoint of the central carbon-carbon bond in the dianion. In the crystal, inter-molecular N-H⋯O hydrogen bonds link the cations and anions.

We have raised specific antibodies against the PRP6 protein and shown that the U4, U5 and U6 snRNAs are co-precipitated with this protein. Using splicing extracts prepared from in vivo heat-inactivated cells, we have characterized the prp4-1 and prp6-1 biochemical defects. In inactivated prp4-1 cell extracts, the U6 snRNA content as well as the U6, U4/U6 snRNPs and the [U4/U6.U5] tri-snRNP part...

The present study was conducted to compare the incidence of transient radicular irritation (TRI) after spinal anesthesia with 5% lidocaine or 0.75% bupivacaine in the supine, prone, and lithotomy surgical positions. A non-rAndomized survey approach was used. The convenience sample consisted of 243 adults receiving spinal anesthesia for elective surgery at 1 of 3 hospitals. Patients were questio...

Single-basidiospore isolates (SBIs) were obtained from field isolates of Thanatephorus cucumeris (Rhizoctonia solani) AG-1 IC and AG-2-2 IV. Formation of distinctive tufts, a recognized feature of heterokaryon synthesis, was observed, and isolates derived from hyphal-tipped tuft hyphae were obtained following pairings between various strains. Three distinctive types of tufts were formed: the fi...

hemoglobin is a porphyrin containing protein with an a2b2 tetrameric structure and like other porphyrin compounds shows spectral behavior of species specific characteristics. researchers tend to relate bands in the hemoglobin spectra to certain structural and/or functional features. given the fact that hemoglobin is the main oxygen carrier in animals functioning through the oxy«deoxy equilibriu...