The crystal structure of the title compound, C(14)H(14)N(2)O, determined at 100 K, shows that the mol-ecules are not planar in the solid state, in contrast to other diazene (azobenzene) derivatives. The dihedral angle between the planes of the two aromatic rings is 42.32 (7)°. The mol-ecules are linked by inter-molecular O-H⋯N hydrogen bonds, forming an infinite one-dimensional chain.

The title compound, C(14)H(14)N(2)O(2), was obtained by a condensation reaction between o-vanillin and 5-methyl-pyridin-2-amine. In the mol-ecule, the dihedral angle between the pyridine and benzene rings is 9.08 (13)°. An intra-molecular hydrogen bond involving the imine N atom and the hydroxyl group may influence the conformation of the mol-ecule. The crystal structure is stabilized by weak C...

listing2011.htm. Accessed January 24, 2013. 13 Gerhardt H, Semb H (2008) Pericytes: Gatekeepers in tumour cell metastasis? J Mol Med (Berl) 86(2):135–144. 14 Klopp AH, et al. (2007) Tumor irradiation increases the recruitment of circulating mesenchymal stem cells into the tumor microenvironment. Cancer Res 67(24):11687–11695. 15 Krasnov P, et al. (2008) Neuronal nitric oxide synthase contribute...

W e comment on a recent study by Dehghan et al. (1), who identified high serum uric acid as an independent risk factor for type 2 diabetes in adults. We investigated serum levels of uric acid in a large cohort of obese adolescents (n 355; mean SD age 13.1 4.1 years and age range 10–22 years) and normal-weight control subjects (n 200) of similar age and sex distribution (2). Uric acid levels wer...

The benzohydrazide mol-ecule of the title compound, C(14)H(11)N(3)O(7)·H(2)O, is planar (r.m.s. deviation = 0.068 Å). The benzohydrazide mol-ecule and the uncoordinated water mol-ecule inter-act through O-H⋯O hydrogen bonds; these together with O-H⋯N and N-H⋯O hydrogen bonds form a three-dimensional network.

In the mol-ecule of the title compound, C(17)H(22)N(4)S, the triazolothia-diazole ring system is essentially planar and forms a dihedral angle of 74.34 (6)° with the benzene ring. In the crystal structure, mol-ecules are linked into chains running along the b axis by C-H⋯π inter-actions; adjacent chains are cross-linked via C-H⋯N hydrogen bonds and short S⋯N contacts [3.2694 (14) and 3.2953 (14...

In this research Bi2O3 was doped with mixtures of 8, 10, 12 and 18 mol % of Y2O3 and Yb2O3 to stabilizing the δ-Bi2O3 phase using solid state reaction technique. Experimental samples were fabricated by isostatic pressing and sintering at 850 °C for 24 h. X-ray diffraction analysis detected cubic phase (δ-Bi2O3) as the sole stable crystalline phase in samples including 12 and 18 mol % of Y2O3 an...

The asymmetric unit of the title compound, C(16)H(14)Cl(2)N(2)O(6)S(2)·2H(2)O, contains one half-mol-ecule of N,N-bis-(4-chloro-phenyl-sulfon-yl)succinamide, with a centre of symmetry at the mid-point of the central C-C bond, and one water mol-ecule. The succinamide mol-ecules are not directly connected via hydrogen bonds, but by hydrogen bonds via the water mol-ecules.