(4Z)-4-[(2-Chloro-anilino)(phen-yl)methyl-idene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one.

The title compound, C(23)H(18)ClN(3)O, exists in an enamine-keto form with the amino group involved in an intra-molecular N-H⋯O hydrogen bond. The five-membered ring is nearly planar, the largest deviation being 0.0004 (7) Å, and makes dihedral angles of 16.62 (6), 41.89 (5) and 71.27 (4)° with the phenyl rings. In the crystal, weak C-H⋯O hydrogen bonds link the mol-ecules into supra-molecular chains along the b axis.

Diaqua-bis[5-(2-pyrid-yl)-1H-tetra-zolato-κN,N]cobalt(II).

In the title compound, [Co(C(6)H(4)N(5))(2)(H(2)O)(2)], the Co atom is bonded to two water mol-ecules and two bidentate 5-(2-pyrid-yl)tetra-zolate ligands resulting in a slightly distorted octa-hedral CoN(4)O(2) coordination geometry. The Co(II) cation is situated on a crystallographic center of inversion. The asymmetric unit therefore comprises one-half of the mol-ecule. The four N atoms belonging to two bidentate 5-(2-pyrid-yl)tetra-zolate ligands lie in the equatorial plane and the two associated water mol-ecules are observed in the axial coordination sites. The crystal structure exhibits a three-dimensional supra-molecular network assembled by inter-molecular O-H⋯N hydrogen bonds.

Diaqua-1κO,3κO-di-µ-cyanido-1:2κN:C;2:3κC:N-dicyanido-2κN-bis-{4,4'-dibromo-2,2'-[propane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato}-1κO,N,N',O';3κO,N,N',O'-1,3-dimanganese(III)-2-nickel(II).

In the title compound, [Mn(2)Ni(C(17)H(14)Br(2)N(2)O(2))(2)(CN)(4)(H(2)O)(2)] or [{Mn(C(17)H(14)Br(2)N(2)O(2))(H(2)O)}(2)(µ-CN)(2){Ni(CN)(2)}], each Mn(III) atom is chelated by a Schiff base ligand via two N and two O atoms and is additionally coordinated by a water mol-ecule to give a slightly distorted octa-hedral geometry. Two such Mn(III) ions are linked by a square-planar Ni(CN)(4) unit, which lies on an inversion centre. A two-dimensional network is formed by O-H⋯O and O-H⋯N hydrogen bonds.

Diazido-bis{2-[3-(dimethyl-amino)propyl-imino-meth-yl]phenol}manganese(III) perchlorate.

The title compound, [Mn(N(3))(2)(C(12)H(18)N(2)O)(2)]ClO(4), was synthesized from manganese(III) acetate, sodium azide and 2-[3-(dimethyl-amino)propyl-imino-meth-yl]phenol by a hydro-thermal reaction. The Mn(III) ion is hexa-coordinated by two N and two O atoms from two phenolate ligands and two N atoms from two azide ligands. The Mn(III) cation lies on an inversion centre and, as a result, the asymmetric unit comprises one half-mol-ecule.

Development of a new sampling medium for bioaerosols.

OBJECTIVE: To develop a new sampling medium for detecting of bioaerosols. METHODS: The sampling media were tested by using Escherichia coli, Staphylococcus aureus and Serratia marcescens under static and active conditions, preliminary applications were performed using AGI-10 and high volume sampler. RESULTS: The average recovery rates were raised to 24.7%, 58.2%, 40.5%, 44.1%, 20.5%, and 15.4%, respectively in six consecutive experiments under static condition for 60 min at room temperature. Four kinds of sampling media were singled out after static experiments, which were referred to as "samplutions" PD1, PX2, TD1, and TX2, respectively. Under the active condition, the protective efficacy of PD1, PX2, TD1, and TX2 was 226% (153/47), 553% (111/17), 150% (120/48), and 268% (419/114), respectively. CONCLUSION: The samplutions have some effects on the subsequent nucleic acid detection, which could be avoided by employing standard nucleic acid extraction procedure. The newly developed samplution can be applied to the detection of bioaerosols.