This study concerns the thermotolerance of spores of mesophilic fungi isolated from a tropical semi-arid habitat subject to dry season fire in the Western Ghats, southern India. Among 25 species of Ascomycota isolated from leaf litter, nine were able to grow after incubation in a drying oven for 2h at 100°C; the spores of two of these species survived 2h incubation at 110°C, and one survived ex...

The hydration of the d(CGCGAATTCGCG) B-DNA duplex in solution was studied by nuclear magnetic relaxation dispersion (NMRD) of the water nuclei 1H, 2H, and 17O, and by nuclear Overhauser effects (NOEs) in high-resolution two-dimensional 1H NMR spectra. By comparing results from the free duplex with those from its complex with netropsin, water molecules in the "spine of hydration" in the AATT reg...

A previous infrared multiple photon dissociation (IRMPD) action spectroscopy and density functional theory (DFT) study explored the structures of the [M,C,2H]+ products formed by dehydrogenation of methane by four, gas-phase 5d transition metal cations (M+ = Ta+, W+, Ir+, and Pt+). Complicating the analysis of these spectra for Ir and Pt was observation of an extra band in both spectra, not rea...

3,4-Dihydro-2H-benzo[4,5]isothiazolo[2,3-a]pyrimidine is a newly identified antiviral agent against human immunodeficiency virus type 1 (HIV-1) infection, derived from 3,4-dihydro-2H,6H-pyrimido[1,2-c][1,3]benzothiazin-6-imine (PD 404182). The introduction of the hydrophobic 8-aryl substituent on the benzene substructure improved its anti-HIV activity, resulting in the identification of 6-fold ...

The title compound, [CuBr(C(9)H(9)N(5))](n), prepared by the solvothermal treatment of CuBr with 4-(2-allyl-2H-tetra-zol-5-yl)pyridine, is a new homometallic Cu(I)-olefin coordination polymer in which dinuclear Cu(2)Br(2) units are linked by the organic olefin ligand 4-(2-allyl-2H-tetra-zol-5-yl)pyridine, which acts as a bidentate ligand connecting two neighbouring Cu(2)Br(2) units through the ...

The title compound, [Zn(C(8)H(6)N(5)O(2))(2)(H(2)O)(2)], was synthesized by hydro-thermal reaction of ZnBr(2) with 2-[5-(2-pyrid-yl)-2H-tetra-zol-2-yl]acetic acid. The Zn(II) atom lies on an inversion center in a distorted octa-hedral environment with two planar trans-related N,N'-chelating 2-[5-(2-pyrid-yl)-2H-tetra-zol-2-yl]acetic acid ligands in the equatorial plane and two water mol-ecules ...

In the title compound, C(4)H(12)N(2) (2+)·2C(6)H(3)N(2)O(4) (-)·2H(2)O or (1,4-dacH(2))(pyzdcH)(2)·2H(2)O, the complete dication is generated by crystallographic inversion symmetry. An intra-molecular O-H⋯O hydrogen bond occurs in the anion. In the crystal, O-H⋯O, O-H⋯N, N-H⋯O and N-H⋯N hydrogen bonds result in the formation of a three-dimensional network. Additionally, π-π stacking inter-actio...

Abstract Hydrophobic metakaolin-based flat sheet membrane was developed via phase inversion and sintering technique modified through 1H,1H,2H,2H-perfluorooctyltriethoxysilane grafting agents. The prepared characterized by different techniques such as XRD, FTIR, SEM, contact angle, porosity, mechanical strength. Their results indicated that the wettability, structural, properties of confirm suit...

Copper(I) complexes of a new participative triphosphane ligand (2H) have been prepared and structurally characterized: in particular, [Cu(2H)I] [Cu(2)]2. Hydrogenation the latter species afforded trimetallic hydride [Cu3(2)2(μ-H)] or, presence BEt3, [Cu(2H)(HBEt3)]. Their formation evidences transient [Cu(2H)H] formed by hydrogenolysis Cu–N bond [Cu(2H)(HBEt3)] behaves like complex inserts CO2 ...