Tetra­aqua­bis[3-(4-pyrid­yl)benzoato-κN]nickel(II)

The NiII atom in the title compound, [Ni(C12H8NO2)2(H2O)4], exists in an all-trans octa­hedral coordination environment. The 3-(4-pyrid­yl)benzoate ligand binds to Ni atom through the pyridyl N atom; the pyridine and benzene rings are oriented at a dihedral angle of 26.27 (10)°. Adjacent complexes are linked by O—H⋯O hydrogen bonds, forming a three-dimensional network. The metal atom lies on a special position of 2 site symmetry in the crystal structure

Impact of Dielectric Formation and Processing Techniques on the Operation of 4H-SiC MOSFETs

The mobility of carriers in the channel of silicon carbide is significantly lower than in equivalent silicon devices. This results in a significant increase in on-state resistance in comparison to theoretical predictions and is hindering the uptake of silicon carbide technology in commercial circuits. The density of interface traps at the interface between silicon carbide and the dielectric film is higher and this is often considered to be the primary reason for the low mobility. In this work, we show that the mobility is dominated by the surface roughness of the silicon carbide, especially when the transistor is operating in the strong inversion regime, by careful examination of the characteristics of lateral transistors designed to form complimentary MOS functions

4-Hydroxy­pyridinium hydrogen sulfate

The crystal structure of the title salt, C5H6NO+·HSO4 −, consists of planar(r.m.s. deviation = 0.001 Å) 4-hydroxy­pyridinium cations and hydrogen sulfate anions which are hydrogen bonded into a layer motif. In the anion, the S—O bond [1.551 (2) Å] involving the O atom bearing the acid H atom is longer than the other three S—O bonds, which range from 1.437 (1) to 1.454 (1) Å

7H-Chromeno[3,2-h]quinolin-7-one methanol monosolvate

The four-ring system in the title compound, C16H9NO2·CH3OH, is planar (r.m.s deviation = 0.03 Å); the methanol solvent mol­ecule forms a hydrogen bond to the quinoline N atom

μ-Adipato-κ2 O 1:O 4-bis­{[2,6-bis­(1H-benzimidazol-2-yl-κN 3)pyridine-κN](nitrato-κO)lead(II)}

The dinuclear title compound, [Pb2(C6H8O4)(NO3)2(C19H13N5)2], lies with the mid-point of the butyl chain of the bridging adipate unit on a center of inversion. The PbII ion is covalently bonded to the nitrate anion and is bonded to a carboxyl­ate group of the adipate unit by another covalent bond. The N-heterocycle functions in a chelating tridentate mode. The metal atom exists in a Ψ-octa­hedral coordination environment. When weaker Pb⋯O inter­actions are also considered, the geometry is a Ψ-tricapped trigonal prism in which the lone-pair electrons occupy one face of the trigonal prism. Adjacent mol­ecules are linked into a layer structure by N—H⋯O hydrogen bonds

Bis(1-adamantylammonium) tetra­chloridocobaltate(II)

The CoII atom in the title salt, (C10H18N)2[CoCl4], exists in a tetra­hedral coordination geometry. The asymmetric unit has two cations that lie on different special positions of site symmetry m; the anion lies on another special position of site symmetry m

catena-Poly[[[dichloridozinc(II)]-μ-1,4-bis­(1H-benzimidazol-2-yl-κN 3)butane] 1,4-bis­(1H-benzimidazol-2-yl)butane solvate]

In the crystal structure of the title coordination polymer/co-crystal, {[ZnCl2(C18H18N4)]·C18H18N4}n, the tetrahedrally coordinated ZnII ions are linked by the N-heterocycle into a linear chain. Another N-heterocycle present is not coordinated to the metal atom but inter­acts with the chain through N—H⋯N and N—H⋯Cl hydrogen bonds. The butyl chain of the uncoordinated ligand is disordered over three positions in a 0.511 (4):0.289 (5):0.200 (5) ratio

[1,2-Bis(1H-benzimidazol-2-yl-κN 3)ethane]dichloridozinc(II)

The title compound, [ZnCl2(C16H14N4)], crystallizes with two mol­ecules in the asymmetric unit. The ZnII atoms show distorted tetrahedral coordination environments. Adjacent mol­ecules are linked by N—H⋯Cl hydrogen bonds, forming a three-dimensional network

Bis(2-hydroxy­imino­methyl-6-methoxy­phenolato-κ2 O 1,N)nickel(II)

The Ni atom in the title compound, [Ni(C8H8NO3)2], lies on a center of inversion in a square-planar coordination enviroment. The hydroxyl group of one anion forms a short hydrogen bond to the metal-coordinated O atom of the other anion