We have performed an experimental investigation on the effects of hydrazine treatment on graphene oxide via a reaction-model approach. Hydrazine was reacted with small conjugated aromatic compounds containing various oxygen functional groups to mimic the structure of graphene oxide. The hydroxyl and carboxylic groups were not readily removed while carbonyl groups reacted with hydrazine to form ...

There are two mol-ecules with similar bond dimensions in the asymmetric unit of the title complex, [Re(C(7)H(4)NO(4))(CO)(3)(H(2)O)]. The metal centre is coordinated facially by three carbonyl groups, is chelated by a 4-carboxy-pyridine-2-carboxyl-ate ligand and is also coordinated by a water mol-ecule. O-H⋯O hydrogen bonds give rise to a three-dimensional network.

Construction and physico-chemical behavior of DNA three way junction (3WJ) functionalized by protein-like residues (imidazole, alcohol and carboxylic acid) at unpaired positions at the core is described. One 5'-C(S)-propargyl-thymidine nucleotide was specifically incorporated on each strand to react through a post synthetic CuACC reaction with either protected imidazolyl-, hydroxyl- or carboxyl...

In the anion of the title salt, C(6)H(18)N(2) (2+)·2C(9)H(3)Cl(4)O(4) (-), the meth-oxy-carbonyl and carboxyl groups are aligned at dihedral angles of 71.0 (3) and 100.9 (3)°, respectively, with the aromatic ring. The asymmetric unit contains half a cation and one anion. In the crystal, inter-molecular N-H⋯O, C-H⋯Cl and C-H⋯O hydrogen bonds link the components into a three-dimensional network.

The title compound, C(8)H(8)BrNO(4)S, a halogenated sulfon-amide, was prepared by basic hydrolysis of the methyl ester. In the crystal, mol-ecules form centrosymmetric hydrogen-bonded dimers via the carboxyl groups. These dimers are further linked by N-H⋯O inter-actions involving the carbonyl O and amide H atoms, forming a ribbon-like structure propagating in [010]. These ribbons are further li...

The crystal structure of the title compound, C(10)H(9)Cl(2)NO(3), consists of dimers due to inter-molecular O-H⋯O hydrogen bonding forming an R(2) (2)(8) ring through the carboxyl- groups. These dimers are linked to each other by inter-molecular hydrogen bonds between the amine group and the adjacent carbonyl O atom. A single C-Cl⋯π inter-action is also observed between the chloro-substituted a...

In the anion of the title salt, C(3)H(10)N(+)·C(9)H(3)Cl(4)O(4) (-), the meth-oxy-carbonyl and carboxyl groups are aligned at dihedral angles of 57.8 (3) and 62.5 (3)°, respectively, with the aromatic ring. In the crystal, the cations and anions are linked by N-H⋯O hydrogen bonds, generating chains running aong the c axis.

Two novel heteropolyoxomolybdate [XMo₈O31]n- (X = Ge(1) or P(2)) manganese carbonyl derivatives [(CH₃)₄N]₆H₆{MnII(GeMo₈O31)[MnI(CO)₃]₂}₂·12H₂O (1) and [(CH₃)₄N]₄H₆{MnII(PMo₈O31)[MnI(CO)₃]₂}₂·14H₂O (2), have been successfully synthesized and characterized in the solid state by single crystal X-ray diffraction, IR and thermogravimetric analysis, and in solution by UV-Vis spectroscopy and electroc...

In the title compound, C(6)H(14)N(+)·C(9)H(3)Cl(4)O(4) (-), the cyclo-hexane ring of the cation adopts a chair conformation. In the anion, the mean planes of the meth-oxy-carbonyl and carboxyl-ate groups form dihedral angles of 67.3 (3) and 55.7 (3)°, respectively, with the benzene ring. In the crystal, inter-molecular N-H⋯O hydrogen bonds connect the components into chains along [100].

For the first time, we designed and synthesized a new kind of ionic metal-organic framework with lanthanide ions and a carboxyl-functionalized ionic liquid, including [Er(4)(mu(3)-OH)(4)(mu(2)-O)(0.5)OL(4)(H(2)O)(3)] x Br(2.90) x Cl(1.10) x 2 H(2)O (MOF-1) and [PrL(H(2)O)(4)Cl] x Br x H(2)O(MOF-2).