An Unprecedented Fully H – ‐Substituted Phosphate Hydride Sr 5 (PO 4 ) 3 H Expanding the Apatite Family

Layered cobalt phosphate grafted with hydrazinium ligands : Co 2 ( PO 4 ) ( H 2 PO 4 ) N 2 H 5

The title compound has been hydrothermally synthesized from elemental cobalt, phosphoric acid, and hydrazine, and characterized by single crystal X-ray diffraction [crystal data: triclinic, P1Å, a~5.1393(6), b~6.363(1), c~11.293(1) AÊ , a~95.65(1), b~96.874(9), c~92.79(1)3], IR, TGA, and magnetic measurement. The structure is made of neutral layers of corner-sharing PO4 tetrahedra and dimers of...

An expanding family of helicases within the 'DEAD/H' superfamily.

'DEAD/H' DNA and RNA helicases constitute a vast superfamily, with both prokaryotes, eukaryotes and viruses encoding numerous members involved in various aspects of genome replication, repair and expression (1, 2). Recently a variety of eukaryotic proteins with similarity to yeast protein Snf2 have been described (3-8), some of them involved in transcription regulation (Snf2, Sthl, YAL001, and ...

H.1 H.2 H.3 H.4

Three-dimensional quantitative structure activity relationship approach series of 3-Bromo-4-(1-H-3-Indolyl)-2, 5-Dihydro-1H-2, 5- Pyrroledione as antibacterial agents

The use of quantitative structure–activity relationships, since its advent, has becomeincreasingly helpful in understanding many aspects of biochemical interactions in drug research.This approach was utilized to explain the relationship of structure with biological activity ofantibacterial. For the development of new fungicides against, the quantitative structural–activityrelationship (QSAR) an...

Cyclo­hexa­nespiro-2′-[2′,3′,6′,7′-tetra­hydro-1′H-cyclo­penta­[d]pyrimidin]-4′(5′H)-one

The title compound, C(12)H(18)N(2)O, was synthesized by the reaction of cyclo-hexa-none and 2-amino-cyclo-pent-1-enecarbonitrile. In the mol-ecule of the title compound, the six-carbon ring displays a chair conformation, the six-membered 1,3-diaza ring and the cyclo-pentene ring both assume envelope conformations. Supra-molecular aggregation is achieved by N-H⋯O hydrogen bonds.