The title compound, C12H18N4O6S (systematic name: 4-di-propyl-amino-3,5-di-nitro-benzene-sulfonamide), is a sulfonamide with herbicidal properties marketed as oryzalin. The dihedral angles between the benzene ring and the mean planes of the nitro groups are 26.15 (11) and 54.80 (9)°. The propyl arms of the di-propyl-amino substituent lie on opposite sides of this ring plane. In the crystal, N-H...

In the title compound difenoconazole [systematic name: 1-({2-[2-chloro-4-(4-chloro-phen-oxy)phen-yl]-4-methyl-1,3-dioxolan-2-yl}meth-yl)-1H-1,2,4-triazole], C19H17Cl2N3O3, the dihedral angle between the planes of the 4-chloro-phenyl and 2-chloro-phenyl rings is 79.34 (9)°, while the dihedral angle between the planes of the triazole ring and the dioxolanyl group is 59.45 (19)°. In the crystal, p...

Structured RNAs play an essential role in chromosome maintenance, RNA processing, protein biosynthesis, and protein transport. To understand RNA function in these diverse biological systems, the rules for RNA folding and recognition must be learned. Recent crystal structures of hammerhead ribozymes, a group I intron domain, and RNA duplexes provide new insights into the principles of RNA foldin...

In the title compound, C14H15N3 (systematic name: 4-cyclo-propyl-6-methyl-N-phenyl-pyrimidin-2-amine), which is the anilino-pyrimidine fungicide cyprodinil, the dihedral angles between the planes of the central pyrimidine ring and the terminal phenyl ring and the mean plane of the cyclo-propane ring system are 14.52 (11) and 88.79 (10)°, respectively. In the crystal, weak π-π inter-actions [3.8...

The title compound (systematic name: 1-{[2-(cyclo-propylcarbon-yl)anilino]sulfon-yl}-3-(4,6-di-meth-oxy-pyrimidin-2-yl)urea), C17H19N5O6S, is a pyrimidinyl-sulfonyl-urea herbicide. The dihedral angles between the mean planes of the central benzene ring and the cyclo-propyl and pyrimidinyl rings are 75.32 (9) and 88.79 (4)°, respectively. The C atoms of the meth-oxy groups lie almost in the plan...

The crystals of [WS (CuNCS) ] anion have been isolated from CH ,CI solution and examined by X-ray structural analysis as well as by IR spectroscopy. The unit cell is monoclinic with a= 14.3796(13), b= 18.039(1 I), c= 22.5956(23)& P= 96.053(8)', space group P2,/n (14), Z= 4. The crystal structure was refined by the least-squares calculations to a final R-value of 0.0398(Rw= 0.0443) for 2777 u...

In the title compound, C21H22ClNO4 [systematic name: (E)-3-(4-chloro-phen-yl)-3-(3,4-di-meth-oxy-phen-yl)-1-(morpholin-4-yl)prop-2-en-1-one], which is the morpholine fungicide dimethomorph, the dihedral angles between the mean planes of the central chloro-phenyl and the terminal benzene and morpholine (r.m.s. deviation = 0.2233 Å) rings are 71.74 (6) and 63.65 (7)°, respectively. In the crystal...

The X-ray structure of tryptophanase (Tnase) reveals the interactions responsible for binding of the pyridoxal 5'-phosphate (PLP) and atomic details of the K+ binding site essential for catalysis. The structure of holo Tnase from Proteus vulgaris (space group P2(1)2(1)2(1) with a = 115.0 A, b = 118.2 A, c = 153.7 A) has been determined at 2.1 A resolution by molecular replacement using tyrosine...

The title compound, C12H4Cl2F6N4OS {systematic name: 5-amino-1-[2,6-di-chloro-4-(tri-fluoro-meth-yl)phen-yl]-4-[(tri-fluoro-methane)sulfinyl]-1H-pyrazole-3-carbo-nitrile}, is a member of the phenyl-pyrazole group of acaricides, and one of the phenyl-pyrazole group of insecticides. The dihedral angle between the planes of the pyrazole and benzene rings is 89.03 (9)°. The fluorine atoms of the tr...

The title compound, penta-barium tetra-indium hexa-anti-mony, was synthesized by an indium-flux reaction and its structure features layers composed of edge-sharing In2Sb6 units. The voids between the In4Sb6 layers are filled by Ba(2+) cations, which are all surrounded by six Sb atoms and form bicapped octa-hedral or triangular prismatic coordination geometries. There are five barium ions in the...