Synthesis, structures, and reactivity of isomers of [RuCp*(1,4-(MeN)CH)].

[RuCp*(1,3,5-RCH)] {Cp* = η-pentamethylcyclopentadienyl, R = Me, Et} have previously been found to be moderately air stable, yet highly reducing, with estimated D/0.5D (where D and D represent the dimer and the corresponding monomeric cation, respectively) redox potentials of -2.0 V FeCp.

Structural Diversity in 2,2'-[Naphthalene-1,8:4,5-bis(dicarboximide)-'-diyl]-bis(ethylammonium) Iodoplumbates.

Crystallization from solutions containing 2,2'-[naphthalene-1,8:4,5-bis(dicarboximide)-'-diyl]-bis(ethylammonium) diiodide ((NDIC2)I) and PbI has been investigated. Eight different materials are obtained, either by variation of crystallization conditions or by subsequent thermal or solvent-induced transformations. Crystal structures have been determined for five materials.

Exploring intermolecular contacts in multi-substituted benzaldehyde derivatives: X-ray, Hirshfeld surface and lattice energy analyses.

Crystal structures of six benzaldehyde derivatives (1-6) have been determined and their supramolecular networks were established by an X-ray crystallographic study. The study has shown that the compounds are linked by various intermolecular interactions such as weak C-H⋯O hydrogen bonding, and C-H⋯π, π-π and halogen bonding interactions which consolidate and strengthen the formation of these molecular assemblies. The carbonyl group generates diverse synthons in 1-6 intermolecular C-H⋯O hydrogen bonds.

Synthesis and structural study of organic two-photon-absorbing cycloalkanone chromophores.

The three organic two-photon-absorbing cycloalkanone chromophores 2,4-bis[4-(diethylamino)benzylidene]cyclobutanone, CHNO (I), 2,5-bis[4-(diethylamino)benzylidene]cyclopentanone, CHNO (II), and 2,6-bis[4-(diethylamino)benzylidene]cyclohexanone, CHNO (III), were obtained by a reaction between 4-(diethylamino)benzaldehyde and the corresponding cycloalkanone and were characterized by single-crystal X-ray diffraction studies, as well as density functional theory (DFT) quantum-chemical calculations. Molecules of this series have three main fragments, i.e.

Crystal structure of 4,4'-bis-(4-bromo-phen-yl)-1,1',3,3'-tetra-thia-fulvalene.

The mol-ecule of the title compound, CHBrS, has a C-shape, with mol-ecular symmetry. The dihedral angle between the planes of the di-thiol and phenyl rings is 8.35 (9)°.

Crystal structure and Hirshfeld surface analysis of new polymorph of racemic 2-phenyl-butyramide.

A new polymorph of the title compound, CHNO, was obtained by recrystallization of the commercial product from a water/ethanol mixture (1:1 /). Crystals of the previously reported racemic and homochiral forms of 2-phenyl-butyramide were grown from water-aceto-nitrile solution in 1:1 volume ratio [Khrustalev (2014 ▸). , 3360-3369].

Synthesis, crystal structure studies and solvatochromic behaviour of two 2-{5-[4-(dimethylamino)phenyl]penta-2,4-dien-1-ylidene}malononitrile derivatives.

The synthesis, crystal structure studies and solvatochromic behavior of 2-{(2E,4E)-5-[4-(dimethylamino)phenyl]penta-2,4-dien-1-ylidene}malononitrile, CHN (DCV[3]), and 2-{(2E,4E,6E)-7-[4-(dimethylamino)phenyl]hepta-2,4,6-trien-1-ylidene}malononitrile, CHN (DCV[4]), are reported and discussed in comparison with their homologs having a shorter length of the π-conjugated bridge. The compounds of this series have potential use as nonlinear materials with second-order effects due to their donor-acceptor structures. However, DCV[3] and DCV[4] crystallized in the centrosymmetric space group P2/c which excludes their application as nonlinear optical materials in the crystalline state.