A marine strain of Penicillium waksmanii Zaleski was isolated from a sample of seawater from shellfish-farming area in the Loire estuary (France). The in vitro marine culture showed an important antifungal activity. Bioassay-guided fractionation was used to purify the crude extract. Dereplication by electrospray-ion trap/mass spectrometry (ESI-IT/MS) afforded the identification of the antifunga...

The etching of GaN was investigated in an Ar/Cl2 inductively coupled plasma. Optical emission spectroscopy and an ion flux probe were used to obtain insight into the etch mechanisms during processing. Langmuir probe measurements were also used to determine the basic Ar/Cl2 plasma characteristics. Etch rates of 500 nm/min were obtained at relatively low Cl2 fractions of 50%. The dominant emissio...

The 1H NMR spectra of 1-halonaphthalenes were recorded and assigned. These data together with the known 1H chemical shifts of the halobenzenes and of H-5 in 4-halophenanthrenes were used to investigate different models of halogen SCS using the CHARGE program. Good agreement was obtained with the observed shifts for the fluoro compounds, but a new model which included the anisotropy of the C-X b...

The title complex, [Cu(C(3)H(2)N(3)O(2))Cl(C(12)H(8)N(2))], crystallizes with two independent mol-ecules in the asymmetric unit. Each Cu(II) atom is coordinated by an N atom and an O atom from the bidentate 1H-1,2,4-triazole-3-carboxyl-ate ligand, two N atoms from the 1,10-phenanthroline ligand, and the Cl atom. The coordination geometry is based on a ClN(3)O square pyramid. In the crystal stru...

13 Address correspondence to: 14 Gerardo Gamba, M.D., Ph.D. 15 Vasco de Quiroga No. 15, Tlalpan 14000 Mexico City, Mexico 16 e-mail: [email protected] or [email protected] 17 18

The Pd(II) atom in the complex cation of the title compound, [PdCl(C(21)H(16)N(4))]Cl, is coordinated by three N atoms derived from the terpyridine ligand and a chloride ion, which define a distorted PdClN(3) square-planar coordination geometry. In the crystal, the presence of N-H⋯Cl hydrogen bonds involving the amino H atom and chloride anions link two cations and two anions into a four-ion ag...

In the crystal structure of the centrosymmetric title compound, [Zn(2)Cl(4)(C(14)H(14)N(4))(2)], the Zn(II) atom is coordinated by two N atoms from two 1,2-bis-(imidazol-1-ylmeth-yl)benzene ligands and two Cl atoms to confer a distorted tetra-hedral geometry at the metal center.

Reactions of chlorine (Cl(2)) with 4-halo-1,1,2-trifluorobut-1-enes (1, 2, or 3) give open-ion intermediates A and E that are in equilibrium. The open-chloronium ions (E) rearrange to a five-membered-ring halonium ion during ionic chlorination of 3 when the number-4 halo-substituent is iodine. Three-membered-ring bromonium and iodonium ions from alkenes 1, 2, or 3 are rather symmetrical and sim...

The microwave spectra of (CH(3))(3)(74)Ge(35)Cl and its isotopologues (CH(3))(3)(72)Ge(35)Cl and (CH(3))(3)(74)Ge(37)Cl have been studied in the frequency range from 3-24 GHz revealing the complex internal dynamics of this organometallic molecule with three internal rotors. The assignment of the complex spectrum has been facilitated by permutation-inversion theory and ab initio calculations. Th...