The antibacterial properties of poly(N-acryloyl-4- and -5-aminosalicylic acids) and their borate complexes were evaluated. Poly(N-acryloyl-4- and 5-aminosalicylic acids) were used to render the antibiotics streptomycin and gentamicin insoluble. The antibacterial properties of the resultant water-insoluble streptomycin and gentamicin derivatives were evaluated, and the results show that the poly...

Reaction of the acetylene Mes(2)P-C≡C-Ar with B(C(6)F(5))(3) at rt gives a zwitterionic phosphirenium product, which reacts further at >100 °C to complete the 1,1-carboboration reaction.

The reaction of [Pd(MeCN)(4)](BF(4))(2) with 2,2'-bipyrimidine (bpm) in MeCN-CHCl(3) afforded the title compound, [Pd(C(8)H(6)N(4))(2)](BF(4))(2)·C(2)H(3)N. The asymmetric unit contains two half complexes, with the Pd(II) atoms both lying on a twofold axis. Each metal atom adopts a tetra-hedrally distorted square-planar geometry. In the crystal, [Pd(bpm)(2)] dications are linked by C-H⋯N hydrog...

Introduction of the Cl(-) anion in the borate systems generates a new perovskite-like phase, K(3)B(6)O(10)Cl, which exhibits a large second harmonic response, about four times that of KH(2)PO(4) (KDP), and is transparent from the deep UV (180 nm) to middle-IR region. K(3)B(6)O(10)Cl crystallizes in the noncentrosymmetric and rhombohedral space group R3m. The structure consists of the A-site hex...

The title compound, [Na(C(16)H(36)BO(4))](n), has a fourfold axis passing through the Na and B atoms which both are bound by four O atoms. The tetra-butoxy-borate anion provides the bridging to form one-dimensional polymers running along [001], just like those found for the tetra-ethoxy-borate structure. The two but-oxy 'tail' atoms are disordered over two conformations in a 0.887 (9):0.113 (9)...

Single crystals of monoclinic Nd(2)W(2)O(9) were obtained by growth from tungsten borate flux in an atmosphere of air. The crystal structure consists of chains of distorted [WO(6)] octa-hedra that run along the c axis of the structure, and of [NdO(9)] polyhedra that are connected via common faces and common edges to form a three-dimensional framework.

Reaction of the -CH2OSiMe3 substituted allyldimesitylphosphane 5 with HB(C6F5)2 resulted in a hydroboration/(C6F5)2BOSiMe3 elimination sequence to give the phosphinomethyl substituted cyclopropane derivative , probably via a phosphiranium type intermediate. Addition of B(C6F5)3 to compound gave the stable phosphiranium/borate zwitterion that was isolated and characterized by X-ray diffraction.

1-Ethyl-3-methylimidazolium bis(oxalato)borate ([Emim][BOB]), a room-temperature ionic liquid, has been prepared and used for the first time to develop new borate-containing material. A new open-framework cobalt borophosphate, (NH(4))(7)Co(4)(H(2)O)[B(2)P(4)O(15)(OH)(2)](2)[H(2)PO(4)][HPO(4)], with peanut shaped extra-large 16-ring channels has been obtained.

Borates have long been recognized as a very important family of nonlinear optical (NLO) crystals, and have been widely used in the laser frequency-converting technology in ultraviolet (UV) and deep-ultraviolet (DUV) regions. In this work, the borate-based UV and DUV NLO crystals discovered in the recent decade are reviewed, and the structure–property relationship in the representative borate-ba...