In the crystal of the title compound, the molecules are connected through C—H⋯O hydrogen bonds, generating [100] chains, which are crosslinked by weak π–π stacking interactions.
In the crystal of the title compound, C15H16O4, the molecules are connected through C—H⋯O hydrogen bonds, generating [100] chains, which are crosslinked by weak π–π stacking interactions.
The molecular structure of Sn(NHMes)4 is defined by a central tin(IV) atom that is coordinated by four NHMes groups in a distorted tetrahedral arrangement.
Transamination of Sn(NMe2)4 with H2NMes (Mes is 2,4,6-trimethylphenyl, C9H11) led to the formation of the title compound, [Sn(C9H12N)4] or Sn(NHMes)4, which crystallizes in the tetragonal space group P
The title compound forms a sheet structure of dimers exhibiting intra- and intermolecular hydrogen bonds.
The structure of the title compound, C8H7IO3, at 90 K has monoclinic (P21/c) symmetry. The extended structure is layered and displays intermolecular and intramolecular hydrogen bonding arising from the same OH group.
(C8H20N)8[Mo10O34] comprises a centrosymmetric decamolybdate polyanion linked through N—H⋯O hydrogen bonds to dibutylammonium counter-cations.
In the title salt, (C8H20N)8[Mo10O34], the [Mo10O34]8− polyanion is located about an inversion centre and can be considered as a β-type octamolybdate anion to which two additional MoO4 tetrahedra are linked via common corners. The [Mo10O34]8− polyanions are packed in rows extending parallel to [001] and are connected to the dibutylammonium counter-cations through N—H⋯O hydrogen-bonding interactions.
The crystal structure of the title complex features O—H⋯O hydrogen bonds, which form
The title complex, [Cu(C8H18NO5)Cl] or [Cu(H4bis-tris)Cl], was obtained starting from the previously reported [Cu(H5bis-tris)Cl]Cl compound. The deprotonation of the aminopolyol ligand H5bis-tris {[bis(2-hydroxyethyl)amino]tris(hydroxymethyl)methane, C8H19NO5} promotes the formation of a very strong O—H⋯O intermolecular hydrogen bond, characterized by an H⋯O separation of 1.553 (19) Å and an O—H⋯O angle of 178 (4)°. The remaining hydroxy groups are also engaged in hydrogen bonds, forming R 2 2(8), R 4 4(16), R 4 4(20) and R 4 4(22) ring motifs, which stabilize the triperiodic supramolecular network.
The molecule of the title NCNHCS pincer N-heterocyclic carbene palladium(II) complex, [PdBr(C21H25N3S)]Br, exhibits a slightly distorted square-planar coordination at the palladium(II) atom, with the five-membered chelate ring nearly planar. The six-membered chelate ring adopts an envelope conformation. Upon chelation, the sulfur atom becomes a stereogenic centre with an R S configuration induced by the chiral carbon of the precursor imidazolium salt.
The molecule of the title NCNHCS pincer N-heterocyclic carbene palladium(II) complex, [PdBr(C21H25N3S)]Br, exhibits a slightly distorted square-planar coordination at the palladium(II) atom, with the five-membered chelate ring nearly planar. The six-membered chelate ring adopts an envelope conformation. Upon chelation, the sulfur atom becomes a stereogenic centre with an R S configuration induced by the chiral carbon of the precursor imidazolium salt. There are intramolecular C—H⋯Br—Pd hydrogen bonds in the structure. The two interstitial Br atoms, as the counter-anion of the structure, are both located on crystallographic twofold axes and are connected to the complex cations via C—H⋯·Br hydrogen bonds.
The title compound is a diazaborinane featuring substitution at the 1, 2, and 3 positions of the nitrogen–boron six-membered heterocycle. In the crystal, molecules are stacked in a head-to-tail manner. The iodide ion makes close contacts with three organic molecules and supports the alternating stack.
The title compound, C17H17BN3I, is a type of diazaborinane featuring substitution at the 1, 2, and 3 positions of the nitrogen–boron six-membered heterocycle. The organic molecule has a planar structure, the dihedral angle between the pyridyl ring and the fused ring system being 3.46 (4)°. In the crystal, molecules are stacked in a head-to-tail manner. The iodide ion makes close contacts with three organic molecules and supports the alternating stack.
The structure of bis[2,3-bis(thiophen-2-yl)pyrido[3,4-b]pyrazine]silver(I) perchlorate methanol disolvate is monoclinic. The Ag atom coordinates pyrido N atoms and is two-coordinate; however, the Ag atom has nearby O atoms that can be assumed to be weakly bonding – one from the perchlorate anion and one from the methanol solvate. One of the thienyl groups of a 2,3-bis(thiophen-2-yl)pyrido[3,4-b]pyrazine is flipped disordered and was refined to occupancies of 68.4 (6) and 31.6 (6)%.
The title compound, [Ag(C15H9N3S2)2]ClO4·2CH3OH, is monoclinic. The AgI atom is coordinated by pyrido N atoms and is two-coordinate; however, the AgI atom has nearby O atoms that can be assumed to be weakly bonded – one from the perchlorate anion and one from the methanol solvate molecule. One of the thienyl groups on a 2,3-bis(thiophen-2-yl)pyrido[3,4-b]pyrazine is flipped disordered and was refined to occupancies of 68.4 (6) and 31.6 (6)%.
The title compound crystallizes in the non-centrosymmetric orthorhombic space group Fdd2, with 16 molecules in the unit cell. In the crystal, aromatic π–π stacking distance and short C—H⋯O contacts are observed.
In the title compound, C22H11N3O3S, dihedral angle between the phenyl rings on the periphery of the molecule is 8.05 (18)°. In the crystal, aromatic π–π stacking distance and short C—H⋯O contacts are observed. The maximum absorption occurs at 688 nm.
The title compound crystallizes in space group P21/c with four molecules in the asymmetric unit.
The title compound, C22H12N2S2, crystallizes in space group P21/c with four molecules in the asymmetric unit. The heterocyclic molecule is quasi-planar with a dihedral angle between the phenyl rings on the periphery of the molecule of 1.73 (19)°. Short H⋯S (2.92 Å) and C—H⋯π [2.836 (3) Å] contacts are observed in the crystal with shorted π–π stacking distances of 3.438 (3) Å along the b axis. Surprisingly, and unlike a closely related material, this molecule readily forms large crystals by sublimation and by slow evaporation from dichloromethane. The maximum absorbance in the UV-Vis spectrum is at 533 nm. Emission was measured upon excitation at 533 nm with a fluorescence λmax of 658 nm and cutoff of 900 nm.
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