4,4′-Bis(acetyl­amino)-1,1′-ethyl­enedipyridinium bis­(tetra­fluorido­borate)

In the organic cation of the title compound, C16H20N4O2 2+·2BF4 −, the pyridinium rings are nearly parallel, with a dihedral angle of 12.54 (12)°. The crystal packing is stabilized by N—H⋯F, C—H⋯F and C—H⋯O hydrogen bonds

1-Isopropyl-4-tosyl­piperazin-1-ium trifluoro­acetate

In the title compound, C14H23N2O2S+·C2F3O2 −, the piperazine ring adopts a chair conformation. The crystal packing is stabilized by C—H⋯O and N—H⋯O hydrogen bonds between the cation and anion. The F atoms are disordered over two positions; the site occupancy factors are 0.55 (2) and 0.45 (2)

2-Nitro-N-(4-pyridinio)benzene­sulfonamidate

The title compound, C11H9N3O4S, crystallizes with two mol­ecules in the asymmetric unit; each mol­ecule exists as a zwitterion in the solid state. Inter­molecular N—H⋯N hydrogen bonds link the mol­ecules into chains. Weak C—H⋯O inter­actions further stabilize the crystal structure

Triaqua(2-{[(E)-5-formyl-2-oxidobenzyl­idene]amino}ethanesulfonato)cobalt(II) dihydrate

The title compound, [Co(C10H9NO5S)(H2O)3]·2H2O, is a cobalt–Schiff base complex derived from taurine. There are two complex mol­ecules and four solvent water mol­ecules in the asymmetric unit. The central Co atom is six coordinated by two O atoms and one N atom of the ligand and three O atoms of water mol­ecules, forming a slightly distorted octa­hedral geometry. The crystal structure is stabilized by several O—H⋯O hydrogen bonds

Isolation and Characterization of 21 Microsatellite Loci in Cardiocrinum giganteum var. yunnanense (Liliaceae), an Important Economic Plant in China

Twenty-one microsatellite markers from the genome of Cardiocrinum giganteum var. yunnanense, an important economic plant in China, were developed with a fast isolation protocol by amplified fragment length polymorphism of sequences containing repeats (FIASCO). Polymorphism within each locus was assessed in 24 wild individuals from Gaoligong Mountains in western Yunnan Province, China. The number of alleles per locus ranged from 2 to 4 with a mean of 2.9. The expected and observed levels of heterozygosity ranged from 0.042 to 0.726 and from 0.000 to 1.000, with averages of 0.44 and 0.31, respectively. These polymorphic microsatellite markers should prove useful in population genetics studies and assessments of genetic variation to develop conservation and management strategies for this species

3-Bromo-9-(4-chloro­benz­yl)-9H-carbazole

The title compound, C19H13BrClN, was synthesized by N-alkyl­ation of 4-chloro-1-(chloro­meth­yl)benzene with 3-bromo-9H-carbazole. The carbazole ring system is essentially planar, with a mean deviation of 0.028 Å, and it makes a dihedral angle of 91.2 (3) Å with the plane of the benzene ring