scholarly journals [N,N′-Bis(2,6-diethyl-4-phenylphenyl)butane-2,3-diimine-κ2N,N′]dibromidonickel(II)

2014 ◽  
Vol 70 (3) ◽  
pp. m102-m102
Author(s):  
Jianchao Yuan ◽  
Jingjing Xia ◽  
Weibing Xu ◽  
Yanqiong Mu
Keyword(s):  
Dihedral Angle ◽  
Title Compound ◽  
Mirror Symmetry ◽  
Complex Molecule ◽  
Mirror Plane ◽  
Tetrahedral Geometry ◽  
Distorted Tetrahedral Geometry ◽  
Benzene Rings ◽  
Diimine Ligand

The complex molecule in the title compound, [NiBr2(C36H40N2)], has mirror symmetry. The NiIIatom and two Br atoms are located on the mirror plane. The NiIIatom is four-coordinated by the two Br atoms and two N atoms from anN,N′-bis(2,6-diethyl-4-phenylphenyl)butane-2,3-diimine ligand in a distorted tetrahedral geometry. The dihedral angle formed between the two adjacent benzene rings is 47.1 (1)°.

scholarly journals {5,5′-Dimethoxy-2,2′-[2,2-dimethylpropane-1,3-diylbis(nitrilomethanylylidene)]diphenolato}palladium(II)

2012 ◽  
Vol 68 (4) ◽  
pp. m514-m515
Author(s):  
Siti Kamilah Che Soh ◽  
Mustaffa Shamsuddin ◽  
Mohd Mustaqim Rosli ◽  
Hoong-Kun Fun
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Mirror Symmetry ◽  
Three Dimensional ◽  
Mirror Plane ◽  
Dimensional Network ◽  
Benzene Rings

In the title compound, [Pd(C21H24N2O4)], the complete molecule is generated by crystallographic mirror symmetry with the Pd and three C atoms lying on the mirror plane. The Pd—O and Pd—N distances are 1.9932 (6) and 2.0029 (7) Å, respectively. The dihedral angle between two benzene rings of the ligand is 79.21 (4)°. In the crystal, C—H...O hydrogen bonds link the molecules into layers parallel to theabplane. These planes are further connected by C—H...O interactions, forming a three-dimensional network.

scholarly journals Bis[5-methoxy-2-(methoxycarbonyl)phenyl] methylphosphonate

2014 ◽  
Vol 70 (3) ◽  
pp. o269-o269
Author(s):  
Saghir Hussain ◽  
Yang Deli ◽  
Shagufta Parveen ◽  
Xin Hao ◽  
Changjin Zhu
Keyword(s):  
Crystal Structure ◽  
Dihedral Angle ◽  
Intermolecular Interactions ◽  
Tetrahedral Geometry ◽  
Π Interactions ◽  
Distorted Tetrahedral Geometry ◽  
Benzene Rings

In the title phosphonate, C19H21O9P, the dihedral angle between the benzene rings is 63.33 (3)°, and the P atom has a distorted tetrahedral geometry, with angles in the range 101.30 (6)–120.38 (6)°. No significant intermolecular interactions are observed in the crystal structure, and π–π interactions between symmetry-related benzene rings are beyond 4 Å.

scholarly journals Bis(2-amino-3-methylpyridine-κN1)dichloridomercury(II)

2012 ◽  
Vol 68 (8) ◽  
pp. m1099-m1099 ◽  
Author(s):  
Azadeh Tadjarodi ◽  
Keyvan Bijanzad ◽  
Behrouz Notash
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Rotation Axis ◽  
Complex Molecule ◽  
Tetrahedral Geometry ◽  
Distorted Tetrahedral Geometry

In the title compound, [HgCl2(C6H8N2)2], the two independent HgIIcations are each located on a twofold rotation axis and coordinated by two pyridine N atoms from two 2-amino-3-methylpyridine ligands and two Cl−anions in a distorted tetrahedral geometry. An intramolecular N—H...Cl hydrogen bond occurs in each independent complex molecule. Intermolecular N—H...Cl hydrogen bonds occur in the crystal structure.

scholarly journals 2,4-Dichloro-1-iodo-6-nitrobenzene

2014 ◽  
Vol 70 (5) ◽  
pp. o607-o607 ◽  
Author(s):  
Xueshu Li ◽  
Sean Parkin ◽  
Hans-Joachim Lehmler
Keyword(s):  
Crystal Structure ◽  
Nitro Group ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Mirror Symmetry ◽  
Mirror Plane ◽  
Compound C ◽  
Close Contacts

In the crystal structure of the title compound, C6H2Cl2INO2, there are weak C—H...Cl interactions and I...O [3.387 (4) Å] close contacts. These interactions form sheets in theacplane, with the closest contact between adjacent planes occurring between inversion-related nitro O atoms [3.025 (8) Å]. The molecule possesses mirror symmetry, with the halogen, N and C atoms all lying in the mirror plane. Hence, the dihedral angle between the benzene ring and the nitro group is 90°.

scholarly journals [N,N′-Bis(2,3,4-trimethoxybenzylidene)ethane-1,2-diamine-κ2N,N′]dibromidomercury(II)

2012 ◽  
Vol 68 (8) ◽  
pp. m1044-m1044
Author(s):  
Aliakbar Dehno Khalaji ◽  
Michal Dušek ◽  
Karla Fejfarová
Keyword(s):  
Schiff Base ◽  
Dihedral Angle ◽  
Schiff Base Ligand ◽  
Title Compound ◽  
Tetrahedral Geometry ◽  
Distorted Tetrahedral Geometry

In the title compound, [HgBr2(C22H28N2O6)], the HgIIion is bonded to two Br−ions and two N atoms of the chelating Schiff base ligand in a distorted tetrahedral geometry. The Schiff base ligand adopts anE,Econformation. The dihedral angle between the planes of the two halves of the centralN,N′-dimethylethylenediamine part of the ligand is 2.3 (11)°. The crystal studied was twinned by pseudomerohedry [twin law (0-10/-100/00-1)]; the contribution of the minor twin component refined to 0.208 (3).

scholarly journals Crystal structure of 22,24,25-trimethyl-8,11,14-trioxa-25-azatetracyclo[19.3.1.02,7.015,20]pentacosa-2,4,6,15(20),16,18-hexaen-23-one

2017 ◽  
Vol 73 (2) ◽  
pp. 118-121 ◽  
Author(s):  
Van Tuyen Nguyen ◽  
Hong Hieu Truong ◽  
Tuan Anh Le ◽  
Anatoly T. Soldatenkov ◽  
Tuyet Anh Dang Thi ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Nitrogen Atom ◽  
Dihedral Angle ◽  
Title Compound ◽  
Mirror Symmetry ◽  
Bond Angles ◽  
Pyramidal Geometry ◽  
Compound C ◽  
Benzene Rings

The title compound, C24H29NO4, is the product of a Petrenko–Kritchenko condensation of 1,5-bis(2-formylphenoxy)-3-oxapentane, pentan-3-one and methylammonium acetate in ethanol. The molecule has mirror symmetry. The aza-14-crown-3 ether ring adopts abowlconformation stabilized by a weak intramolecular C—H...O hydrogen bond. The conformation of the C—O—C—C—O—C—C—O—C polyether chain is t–g+–t–t–g−–t (t =trans, 180°; g =gauche, ±60°). The dihedral angle between the benzene rings fused to the aza-14-crown-4-ether moiety is 72.68 (4)°. The piperidinone ring adopts achairconformation. The nitrogen atom has a trigonal–pyramidal geometry, the sum of the bond angles being 335.9°. In the crystal, the molecules are linked by weak C—H...O interactions, forming zigzag chains propagating along the [100] direction.

scholarly journals {N,N′-Bis[(E)-3-phenylprop-2-en-1-ylidene]propane-1,3-diamine-κ2N,N′]dichloridocobalt(II)

2009 ◽  
Vol 65 (6) ◽  
pp. m617-m617 ◽  
Author(s):  
Morteza Montazerozohori ◽  
Mohammad Hossein Habibi ◽  
Mehdi Amirnasr ◽  
Keita Ariyoshi ◽  
Takayoshi Suzuki
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Mirror Symmetry ◽  
Schiff Base Complex ◽  
Mirror Plane ◽  
Tetrahedral Geometry ◽  
Base Complex ◽  
Distorted Tetrahedral Geometry ◽  
Cl Atoms

The CoIIatom in the title monomeric Schiff base complex, [CoCl2(C21H22N2)], is bonded to two Cl atoms and to two N atoms of the Schiff base ligandN,N′-bis[(E)-3-phenylprop-2-en-1-ylidene]propane-1,3-diamine in a distorted tetrahedral geometry. The molecule has an idealised mirror symmetry, but is not located on a crystallographic mirror plane.

scholarly journals Crystal structure of nitridobis(trimethylsilanolato)[1,1,1-trimethyl-N-(trimethylsilyl)silanaminato]molybdenum(VI)

2015 ◽  
Vol 71 (12) ◽  
pp. 1497-1500 ◽  
Author(s):  
Caiwei Geng ◽  
Xiang Hao ◽  
Peng Jiao
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Bond Length ◽  
Title Compound ◽  
Triple Bond ◽  
Mirror Plane ◽  
Single Bond ◽  
Tetrahedral Geometry ◽  
Distorted Tetrahedral Geometry ◽  
Anionic Ligand

In the title compound, [Mo(C6H18NSi2)(C3H9OSi)2N], the MoVIcation is located on a mirror plane and is coordinated by a nitride anion, a 1,1,1-trimethyl-N-(trimethylsilyl)silanaminate anion and two trimethylsilanolate anions in a distorted tetrahedral geometry; the N atom and two Si atoms of the 1,1,1-trimethyl-N-(trimethylsilyl)silanaminato anionic ligand are also located on the mirror plane. The Mo[triple-bond]N bond length of 1.633 (6) Å is much shorter than the Mo—N single-bond length of 1.934 (7) Å. No hydrogen bonding is observed in the crystal structure.

scholarly journals Acetonyltriphenylphosphonium 2,3,5-triphenyltetrazolium tetrachloridocuprate(II)

2018 ◽  
Vol 74 (1) ◽  
pp. 69-71 ◽  
Author(s):  
Mouhamadou Birame Diop ◽  
Libasse Diop ◽  
Allen G. Oliver
Keyword(s):  
Hydrogen Bonding ◽  
Title Compound ◽  
Three Dimensional ◽  
Dihedral Angles ◽  
Triphenyltetrazolium Chloride ◽  
Tetrahedral Geometry ◽  
Distorted Tetrahedral Geometry ◽  
Compound C ◽  
Hydrogen Bonding Interactions ◽  
Benzene Rings

The title compound, (C21H20OP)(C19H15N4)[CuCl4], was obtained by reacting CuCl2·2H2O with a mixture of one equivalent of acetonyltriphenylphosphonium chloride and one equivalent of 2,3,5-triphenyltetrazolium chloride in acetonitrile. In the structure, the Cu centre in the dianion is bonded to four chloride ligands and adopts a distorted tetrahedral geometry. The phosphonium cation likewise adopts the expected tetrahedral geometry. The tetrazolium ring forms dihedral angles of 77.68 (10), 26.85 (11) and 66.48 (10)° with the planes of the benzene rings of the substituent groups. In the crystal, weak C—H...Cl hydrogen-bonding interactions involving both cations and the anion give rise to a three-dimensional supramolecular structure.

Dibromido{2-[(4-iodophenyl)iminomethyl]pyridine-κ2 N,N′}zinc(II)

2007 ◽  
Vol 63 (11) ◽  
pp. m2840-m2840 ◽  
Author(s):  
Saeed Dehghanpour ◽  
Ali Mahmoudi ◽  
Mehdi Khalaj ◽  
Sadegh Salmanpour
Keyword(s):  
Title Compound ◽  
Tetrahedral Geometry ◽  
Distorted Tetrahedral Geometry ◽  
Covalently Bonded ◽  
Diimine Ligand

The ZnII centre in the title compound, [ZnBr2(C12H9IN2)], is covalently bonded to two Br atoms and two N atoms of the diimine ligand in a distorted tetrahedral geometry.

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