Pulse radiolysis technique has been used to investigate the reaction of oxide radical ion (O.¡) with 4,6-dihydroxy-2-methyl pyrimidine (DHMP), 2,4-dimethyl-6-hydroxy pyrimidine (DMHP), 5,6-dimethyl uracil (DMU) and 6-methyl uracil (MU) in strongly alkaline medium. The second-order rate constants for the reaction of O.¡ with these compounds are in the range 2–5£ 108 dm3mol¡1 s¡1. The transient a...

The title compound, C(15)H(16)O(4), was prepared by the reaction of 2,2-dimethyl-1,3-dioxane-4,6-dione and 3,4-dimethyl-benzaldehyde in ethanol. The 1,3-dioxane ring exhibits an envelope conformation. In the crystal, mol-ecules are linked by weak inter-molecular C-H⋯O hydrogen bonds, forming chains parallel to the b axis.

The structure of the title salt, 2C(2)H(7)OS(+)·Br(6)Te(2-)·2C(2)H(6)OS, displays O-H⋯O hydrogen bonding between one protonated dimethyl sulfoxide mol-ecule and a neighboring dimethyl sulfoxide mol-ecule, and an octa-hedral geometry for the Te atom; the latter is situated on a center of inversion.

In the title compound, [Pd(C(17)H(14)N(3)S(2))(2)]·2C(3)H(7)NO, the deprotonated Schiff base ligand acts as an N,S-bidentate chelate, forming a five-membered ring with the metal atom. The Pd(II) ion, located on an inversion center, is four-coordinated by two of the Schiff base ligands in a square-planar geometry. In the crystal, the indolic NH groups are bonded to the dimethyl-formamide (DMF) s...

In ethyl 5-cyano-2,6-dimethyl-4-(5-nitro-2-furyl)-1,4-dihydropyridine-3-carboxylate, C15H15N3O5, the molecules are linked into chains by a single N-H...O hydrogen bond. The molecules in diethyl 2,6-dimethyl-4-(5-nitro-2-furyl)-1,4-dihydropyridine-3,5-dicarboxylate, C17H20N2O7, are linked by a combination of one N-H...O hydrogen bond and two C-H...O hydrogen bonds into sheets built from equal nu...

i n m a n u f a c t u r i n g a c t i v i t i e s, i s s u e s s u c h a s t h e i n t e n s i t y o f c o m p e t i t i o n, r i s i n g a n d c h a n g i n g c u s t o m e r e x p e c t a t i o n s, a n d e v e r-i n c r e a s i n g t e c h n o l o g i c a l d e v e l o p m e n t s, i n t e n s i f y m a n u f a c t u r e r c o m m i t m e n t t o e l i m i n a t e d e f e c t s i n i t s p r...

In the title compound, [Co(C(4)H(9))(C(4)H(7)N(2)O(2))(2)(C(5)H(5)N)], which was prepared as a model complex of vitamin B(12), the Co(III) atom is coordinated by a butyl group, a pyridine and two N,N'-bidentate dimethyl-glyoximate ligands in a distorted octa-hedral geometry. The bis-chelating dimethyl-glyoximate ligands, which occupy equatorial sites, are linked by strong intra-molecular O-H⋯O ...

With the exception of the C atoms of two of the methyl groups of the tert-butyl substituent, all of the non-H atoms of the title compound, C(12)H(14)ClN(3)O(3)S, lie on a mirror plane. The 2-chloro-5-nitro-phenyl and 2,2-dimethyl-propionyl substituents are, respectively, cis and trans relative to the thio-carbonyl S atom across the two C-N bonds. Intra-molecular N-H⋯O and C-H⋯S hydrogen bonds f...