In the title compound, C17H12F2N2O2S2, the conformation of the dithia-cyclo-pentane ring is a half-chair, with a total puckering amplitude Q T = 0.460 (1) Å. π-π inter-actions [centroid-centroid distance = 3.585 (9) Å between the fluoro-phenyl rings of neighbouring mol-ecules] and C-H⋯N and C-H⋯O inter-actions help to stabilize the crystal structure and form ladders along the c axis.

BicycloACHTUNGTRENNUNG[1.1.1]pentane and its derivatives are not only of theoretical interest, but have attracted particular attention of organic and physical-organic chemists as peculiar fragments in oligomers, liquid crystalline compounds, supramolecular aggregates and monolayers, as well as compounds for drug design, etc. 1,3-Disubstituted derivatives—bicycloACHTUNGTRENNUNG[1.1.1]pentanes wi...

AIMS To determine the concentrations of pentane (a marker of lipid peroxidation) and other volatile organic compounds in the breath of patients with schizophrenia. METHODS Volatile organic compounds were assayed by gas chromatography/mass spectroscopy (GC/MS) in 88 subjects--25 with acute schizophrenic psychosis, 26 with psychiatric disorders other than schizophrenia, and 37 normal volunteers...

The reaction of 3,3,3-tris-(dimethyl-amino)-1-phenyl-prop-1-yne with bromine in pentane yields the title compound, C(13)H(17)N(2) (+)·Br(-). The acetyl-enic bond distance [1.197 (2) Å] is consistent with a C C triple bond. The amidinium C=N bonds [1.325 (2) and 1.330 (2) Å] have double-bond character and the positive charge is delocalized between the two dimethyl-amino groups.

In this study elements of validation of headspace GC method of determination of residual methanol, n-pentane, ethanol, tert-butylamine, 2propanol, acetonitrile, dichloromethane and toluene in pharmaceutical substance are presented. Validation of the method included: selectivity, system precision, method precision, accuracy (recovery), limits of detection and quantitation (in substance), robustn...

In the title complex, {[Cu(C11H16N4)2(H2O)2](C10H6O6S2)} n , the Cu(II) atom, lying on an inversion center, is six-coordinated by two water mol-ecules and four N atoms from four 1,5-bis-(1H-imidazol-1-yl)pentane (biim-5) ligands in a distorted octa-hedral geometry. Adjacent Cu(II) atoms are linked by two biim-5 ligands, forming a chain along [111]. Two atoms of the pentane group are disordered ...

The NMR spectra of n-pentane as solute in the liquid crystal 5CB are measured at several temperatures in the nematic phase. Atomistic molecular dynamics simulations of this system are carried out to predict the dipolar couplings of the orientationally ordered pentane, and the spectra predicted from these simulations are compared with the NMR experimental ones. The simulation predictions provide...

The title compound, [Hf(C5H5)2(C8H16)], proves a structural motif of hafna-cyclo-pentane besides the coordination of two cyclo-penta-dienyl ligands in an η(5)-fashion. The hafna-cyclo-pentane ring has a twist conformation and is substituted by two ethyl groups in the β,β'-positions, which are trans orientated to each other. One cyclo-penta-dienyl ring and one ethyl group are each disordered ove...

Spectral and kinetic behavior of thermal cis-to-trans isomerization of 4-aminoazobenzene (AAB) is examined in various solvents of different polarities. In contrast to azobenzene (AB), it is found the rate of thermal isomerization of AAB is highly dependent on solvent polarity. Accelerated rates are observed in polar solvents as compared to nonpolar solvents. Moreover, a decrease in the barrier ...