Water as motief in Eksodus 14-15; 2 Konings 2 en Matteus 14:22-33: ’n vergelykende studie

Ultra - violet absorption cross sections of isotopically substituted nitrous oxide species : 14 N 14 NO , 15 N 14 NO , 14 N 15 NO and 15 N 15 NO

The isotopically substituted nitrous oxide species 14N14NO, 15N14NO, 14N15NO and 15N15NO were investigated by ultra-violet (UV) absorption spectroscopy. High precision cross sections were obtained for the wavelength range 181 to 218 nm at temperatures of 233 and 283 K. These data are used to calculate photolytic isotopic fractionation constants as a function of wavelength. The fractionation con...

Eine elektrochemische und strukturelle Studie an den Eisensilylamiden Fe[N(SiMe3)2]2 und Fe[N(SiMe3)2]3

The bis(trimethyl)silylamido complex Na(THF){Fe[N(SiMe3)2]3} and the disilane tBu3SiSitBu3 were obtained from the reaction of Fe[N(SiMe3)2]3 with the sodium silanide Na(THF)2[SitBu3] in a mixture of benzene and THF. Single crystals of Na(THF){Fe[N(SiMe3)2]3} suitable for X-ray diffraction were grown from the reaction solution at ambient temperature (orthorhombic, C2221, Z = 4). The solid-state ...

Extreme ultraviolet laser excitation of isotopic molecular nitrogen : The dipole - allowed spectrum of 15 N 2 and 14 N 15

(E)-2-Phenyl-N-tosyl­non-2-en-4-ynamide

The mol-ecule of the title compound, C22H23NO3S, adopts an E conformation about the C=C bond. The dihedral angle between the benzene rings is 23.79 (5)°. In the crystal, pairs of N-H⋯O hydrogen bonds link the mol-ecules, forming inversion dimers. The terminal butyl group is disordered over two sets of sites in a 0.559 (6):0.441 (6) ratio.

N′-[4-(2-Fur­yl)but-3-en-2-yl­idene]­iso­nicotino­hydrazide

The mol-ecule of the title Schiff base compound, C(14)H(13)N(3)O(2), is not perfectly planar; the furyl and pyridine rings are twisted with respect to each other along the C(4)N(2)C(2) organic chain, making a dihedral angle of 13.3 (1)°. The occurence of N-H⋯O hydrogen bonds builds up a chain developing parallel to the c axis.