The crystal structure of the title compound, (C(4)H(12)N(2))(2)[BiCl(6)]Cl·H(2)O, consists of piperazinediium cations, [BiCl(6)](3-) anions, Cl(-) anions and uncoordinated water mol-ecules. The Bi(III) cation is coordinated by six Cl(-) anions in a slightly distorted octa-hedral geometry. The diprotonated piperazine ring adopts a chair conformation. In the crystal, extensive inter-molecular N-H⋯Cl, N-H⋯O and O-H⋯Cl hydrogen bonds occur.
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http://dx.doi.org/10.1107/S1600536811045594 | DOI Listing |
Unlabelled: All eukaryotes utilize regulated secretion to release molecular signals packaged in secretory granules for local and remote signaling. An anion shunt conductance was first suggested in secretory granules of bovine chromaffin cells nearly five decades ago. Biochemical identity of this conductance remains undefined.
View Article and Find Full Text PDFBMC Ecol Evol
January 2025
Botany & Microbiology Department, Faculty of Science, Suez Canal University, Ismailia, Egypt.
Background: The destructive human activities, encroachment of natural habitats, and hyperarid climate threaten the wild flora of the unprotected mountainous areas facing the Gulf of Suez, Egypt. So, this study aims to revise and give an updated systematic status of the flowering plants growing there to conserve and utilize valuable biodiversity.
Results: This study showed the presence of 136 species, including 7 sub-species of vascular plants, 12 species of monocots, and 124 species dicots belonged to 98 genera and 37 families.
Curr Microbiol
January 2025
Federal Research Center of Biotechnology, Winogradsky Institute of Microbiology, Russian Academy of Sciences, 60-let Oktyabrya prospect, 7, bld. 2, Moscow, Russia, 117312.
A novel Gram-negative, motile, rod-shaped bacterium, designated 4137-cl, was isolated from a thermal spring of North Ossetia (Russian Federation). Strain 4137-cl grew at 30-50 °C (optimum 42 °C) with 0-3.5% NaCl (optimum 0-0.
View Article and Find Full Text PDFJ Chem Theory Comput
January 2025
Department of Physics, Clarendon Laboratory, University of Oxford, Oxford OX1 3PU, U.K.
Mechanisms of anion permeation within ion channels and nanopores remain poorly understood. Recent cryo-electron microscopy structures of the human bestrophin 1 Cl channel (hBest1) provide an opportunity to evaluate ion interactions predicted by molecular dynamics (MD) simulations against experimental observations. Here, we implement the fully polarizable force field AMOEBA in MD simulations on different conformations of hBest1.
View Article and Find Full Text PDFNat Commun
January 2025
State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, China.
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