Chloro(triphenylphosphine)(tropolonato)palladium(II)

2006 ◽  
Vol 62 (5) ◽  
pp. m974-m976 ◽  
Author(s):  
Gideon Steyl
Keyword(s):  
Title Compound ◽  
Interplanar Distance ◽  
Planar Geometry ◽  
Metal Centre ◽  
Stacking Interaction ◽  
Π Stacking ◽  
Square Planar ◽  
Π Stacking Interaction ◽  
New Type

The title compound, [Pd(C7H5O2)Cl(C18H15P)], is a new type of α-diketone palladium(II) complex containing a tertiary arylphosphine. It crystallizes with a distorted square-planar geometry about the palladium(II) metal centre. The most important bond distances and angles include Pd—O (trans P) = 2.0481 (12) Å, Pd—O (trans Cl) = 2.0016 (12) Å, Pd—P = 2.2268 (4) Å, Pd—Cl = 2.2770 (5) Å, O—Pd—O = 80.22 (5)° and O—C—C—O = 3.7 (2)°. A π–π stacking interaction is observed between neighbouring tropolonate groups, with an interplanar distance of 3.377 (6) Å.

scholarly journals 2,3-Bis(furan-2-yl)pyrazino[2,3-f][1,10]phenanthroline

2013 ◽  
Vol 69 (11) ◽  
pp. o1613-o1613
Author(s):  
Wen-xian Dong ◽  
Rong-rong Tong ◽  
Chang-ge Zheng
Keyword(s):  
Dihedral Angle ◽  
Title Compound ◽  
Rotation Axis ◽  
Interplanar Distance ◽  
Stacking Interaction ◽  
Compound C ◽  
Π Stacking ◽  
Π Stacking Interaction

The molecule of the title compound, C22H12N4O2, is located on a twofold rotation axis. The dihedral angle between the furan and pyrazine rings is 34.8 (7)°, and that between the furan rings is 46.92 (7)°. A π–π stacking interaction occurs between adjacent pyrazino[2,3-f][1,10]phenanthroline units, with an interplanar distance of 3.5862 (12) Å.

Synthesis and characterization of a linked, π-π stacked organotin compound of 2-mercapto-6-nitrobenzothiazolyl diphenyltin chloride with 2-ethoxyl-6-nitrobenzothiazole

2003 ◽  
Vol 81 (7) ◽  
pp. 825-831 ◽  
Author(s):  
Chunlin Ma ◽  
Qin Jiang ◽  
Rufen Zhang
Keyword(s):  
Title Compound ◽  
Organotin Compound ◽  
X Ray Diffraction ◽  
X Ray ◽  
Stacking Interaction ◽  
X Ray Crystallography ◽  
H Nmr ◽  
Π Stacking ◽  
Π Stacking Interaction ◽  
Molecular Components

The new organotin compound, Ph2Sn(Cl)[S(C7H3N2O2S)]·[(C7H3N2O2S)OEt], assembled by an intermolecular aromatic benzothiazole–benzothiazole π-π stacking interaction, has been synthesized by the reaction of diphenyltin dichloride with 2-mercapto-6-nitrobenzothiazole. The title compound was characterized by elemental, IR, 1H NMR, and X-ray crystallography analyses. Single-crystal X-ray diffraction data reveals that the title compound has two different molecular components. The component Ph2Sn(Cl)[S(C7H3N2O2S)] has a pentacoordinate tin, which further forms an infinite one-dimensional chain by intermolecular non-bonded Cl···S interactions, resulting in an intercalation lattice that holds (C7H3N2O2S)OEt molecules. The formation of the molecule (C7H3N2O2S)OEt as well as its intercalated mechanism has also been discussed.Key words: organotin, assemble, π-π stacking interaction, 2-mercapto-6-nitrobenzothiazole, non-bonded interaction, crystal structure.

scholarly journals N-Cyclohexyl-N-{[3-(4,6-dimethoxypyrimidin-2-yloxy)pyridin-2-yl]methyl}4,6-dimethoxypyrimidin-2-amine

2012 ◽  
Vol 68 (4) ◽  
pp. o1272-o1272
Author(s):  
De-Cai Wang ◽  
Yu-Jing Wang ◽  
Jun-Song Song ◽  
Ping Wei ◽  
Ping-Kai Ou-yang
Keyword(s):  
Dihedral Angle ◽  
Title Compound ◽  
Pyridine Ring ◽  
Chair Conformation ◽  
Dihedral Angles ◽  
Stacking Interaction ◽  
Compound C ◽  
Π Stacking ◽  
Π Stacking Interaction

In the title compound, C24H30N6O5, the cyclohexyl ring adopts a chair conformation, while the remainder of the molecule adopts a U-shape. The dihedral angles between the pyridine ring and the pendant pyrimidine rings are 69.04 (12) and 75.99 (9)°. The two pyrimidine rings, however, are nearly parallel to one another, with a dihedral angle of 8.56 (15)° between them. They are also involved in an intramolecular π–π stacking interaction with a distance of 3.6627 (18) Å between the ring centroids. In the crystal, C—H...O contacts link the molecules into chains along thebaxis.

scholarly journals 1-Benzyl-2-[(2RS,3SR,6SR)-3-methyl-4-oxo-2,6-diphenylpiperidin-1-ylcarbonyl]-2-phenylethenyl phenylacetate

2006 ◽  
Vol 62 (4) ◽  
pp. o1443-o1445
Author(s):  
Kanagasabapathy Thanikasalam ◽  
Ramasubbu Jeyaraman ◽  
Krishnaswamy Panchanatheswaran ◽  
John N. Low ◽  
Christopher Glidewell
Keyword(s):  
Hydrogen Bond ◽  
Title Compound ◽  
Stacking Interaction ◽  
Compound C ◽  
Π Stacking ◽  
Π Stacking Interaction

Molecules of the title compound, C42H37NO4, are weakly linked into chains by a C—H...O hydrogen bond and pairs of such chains are linked by a single aromatic π–π stacking interaction.

(2RS,4SR)-7-Bromo-2-exo-(2-chlorophenyl)-2,3,4,5-tetrahydro-1,4-epoxynaphtho[1,2-b]azepine: sheets built by the π-stacking of hydrogen-bonded chains

2012 ◽  
Vol 68 (3) ◽  
pp. o123-o125 ◽  
Author(s):  
Andrés F. Yépes ◽  
Alirio Palma ◽  
Justo Cobo ◽  
Christopher Glidewell
Keyword(s):  
Hydrogen Bond ◽  
Title Compound ◽  
Stacking Interaction ◽  
Compound C ◽  
Π Stacking ◽  
Sheet Structure ◽  
Π Stacking Interaction ◽  
Hydrogen Bonded

The molecules of the title compound, C20H15BrClNO, are linked into chains by a C—H...π(arene) hydrogen bond, in which the acceptor is the brominated ring of the naphthalene unit, and these chains are linked by an aromatic π–π stacking interaction, again involving the naphthalene unit, into a sheet structure.

scholarly journals π-Stacked chains in 3,5-dimethyl-1,7-diphenyl-1,7-dihydrodipyrazolo[3,4-b,4′,3′-e]pyridine

2006 ◽  
Vol 62 (5) ◽  
pp. o1676-o1678
Author(s):  
Jaime Portilla ◽  
Jose M. de la Torre ◽  
Justo Cobo ◽  
John N. Low ◽  
Christopher Glidewell
Keyword(s):  
Title Compound ◽  
Condensation Reaction ◽  
Space Group ◽  
Stacking Interaction ◽  
Rotation Axes ◽  
Compound C ◽  
Π Stacking ◽  
Π Stacking Interaction

The title compound, C21H17N5, was prepared using a microwave-induced condensation reaction between 5-amino-3-methyl-1-phenylpyrazole and formaldehyde. The molecules lie across twofold rotation axes in space group C2/c and are into chains by a π–π stacking interaction.

scholarly journals Acetone (2,6-dichlorobenzoyl)hydrazone: chains of π-stacked hydrogen-bonded dimers

2006 ◽  
Vol 62 (7) ◽  
pp. o2841-o2843
Author(s):  
Solange M. S. V. Wardell ◽  
Marcus V. N. de Souza ◽  
James L. Wardell ◽  
John N. Low ◽  
Christopher Glidewell
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Aryl Ring ◽  
Stacking Interaction ◽  
Compound C ◽  
Π Stacking ◽  
Π Stacking Interaction ◽  
Centrosymmetric Dimers ◽  
Hydrogen Bonded

In the title compound, C10H10Cl2N2O, the aryl ring is almost orthogonal to the rest of the molecule. Molecules are linked into centrosymmetric dimers by N—H...O hydrogen bonds, and these dimers are linked into chains by a single π–π stacking interaction.

scholarly journals Crystal structure of 10-[(3-oxo-3H-benzo[f]chromen-1-yl)methyl]-2-trifluoromethyl-9a,10-dihydrobenz[4,5]imidazo[1,2-a]pyrimidin-4(5aH)-one

2015 ◽  
Vol 71 (9) ◽  
pp. o672-o673
Author(s):  
Chandra ◽  
Shamantha Kumar. ◽  
K. B. Puttaraju ◽  
K. Shivashankar ◽  
M. Mahendra
Keyword(s):  
Crystal Structure ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Stacking Interaction ◽  
Compound C ◽  
Π Stacking ◽  
Π Stacking Interaction

In the title compound, C25H14F3N3O3, the dihedral angle between the planes of the benz[4,5]imidazo[1,2-a]pyrimidine unit (r.m.s. deviation = 0.035 Å) and the benzochromene ring system (r.m.s. deviation = 0.106 Å) is 72.82 (5)°. In the crystal, molecules are linked by C—H...O interactions, generating [010]C(9) chains. A weak aromatic π–π stacking interaction [centroid–centroid separation = 3.5376 (15) Å] is also observed.

Hydrogen-bonded bilayers in 7-benzyl-3-tert-butyl-1-phenyl-4,5,6,7-tetrahydro-1H-spiro[pyrazolo[3,4-b]pyridine-5,2′-indan]-1′,3′-dione

2013 ◽  
Vol 69 (8) ◽  
pp. 884-887 ◽  
Author(s):  
Jairo Quiroga ◽  
Dayana Pantoja ◽  
Justo Cobo ◽  
Christopher Glidewell
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Pyridine Ring ◽  
Stacking Interaction ◽  
Tert Butyl ◽  
Compound C ◽  
Π Stacking ◽  
Π Stacking Interaction ◽  
Conformation Intermediate

In the title compound, C31H29N3O2, the reduced pyridine ring adopts a conformation intermediate between the envelope and half-chair forms. The aryl rings of the benzyl and phenyl substituents are nearly parallel and overlap, indicative of an intramolecular π–π stacking interaction. A combination of two C—H...O hydrogen bonds and one C—H...N hydrogen bond links the molecules into a bilayer havingtert-butyl groups on both faces.<!?tpb=19.5pt>

(1,4:8,11:15,18:22,25-Tetraethanotetrabenzo[b,g,l,q]porphyrinato)nickel(II) chloroform disolvate

2006 ◽  
Vol 62 (4) ◽  
pp. m770-m772
Author(s):  
Hai-Yun Xu ◽  
Xia Qin ◽  
Yi-Zhi Li ◽  
Noboru Ono ◽  
Zhen Shen
Keyword(s):  
Title Compound ◽  
Planar Geometry ◽  
Stacking Interactions ◽  
Double Bonds ◽  
Axis Direction ◽  
Porphyrin Macrocycle ◽  
Π Stacking ◽  
Square Planar

In the title compound, [Ni(C44H36N4)]·2CHCl3, the porphyrin macrocycle adopts a ruffle conformation. The NiII atom is coordinated by four N atoms of the porphyrin in a slightly distorted square-planar geometry. The bicyclic groups show disorder of the single and double bonds. The porphyrin planes form two columnar arrays along the b-axis direction through π–π stacking interactions.

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