Synthesis, structural characterization, and bonding analysis of two-coordinate copper(I) and silver(I) complexes of the pyrrole-based bis(phosphinimine): new metal-pyrrole ring π-interactions

2021 ◽  
Author(s):  
Ganesan Mani ◽  
Vikesh Kumar Jha ◽  
Sanghamitra Das ◽  
VASUDEVAN SUBRAMANIYAN ◽  
Tapas Guchhait ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Pyrrole Ring ◽  
Bonding Analysis ◽  
Π Interactions ◽  
Excellent Yield

The reaction between 2,5-bis(diphenylphosphinomethyl)pyrrole and Me3SiN3 gave the new pyrrole-based bis(phosphinimine) L1H in an excellent yield. L1H reacts with [CuCl(COD)]2, AgBF4, or AgOTf to give the corresponding two-coordinate mononuclear ionic...

scholarly journals Crystal structures of two new six-coordinate iron(III) complexes with 1,2-bis(diphenylphosphane) ligands

2018 ◽  
Vol 74 (6) ◽  
pp. 803-807
Author(s):  
Derek L. McNeil ◽  
Daihlia J. Beckford ◽  
Jared L. Kneebone ◽  
Stephanie H. Carpenter ◽  
William W. Brennessel ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Structural Characterization ◽  
Molecular Structures ◽  
Mass Ratio ◽  
Triclinic Space Group ◽  
Space Group ◽  
Ionic Complexes ◽  
Π Interactions ◽  
Centrosymmetric Space Group

Structural characterization of the ionic complexes [FeCl2(C26H22P2)2][FeCl4]·0.59CH2Cl2 or [(dppen)2FeCl2][FeCl4]·0.59CH2Cl2 (dppen = cis-1,2-bis(diphenylphosphane)ethylene, P2C26H22) and [FeCl2(C30H24P2)2][FeCl4]·CH2Cl2 or [(dpbz)2FeCl2][FeCl4]·CH2Cl2 (dpbz = 1,2-bis(diphenylphosphane)benzene, P2C30H24) demonstrates trans coordination of two bidentate phosphane ligands (bisphosphanes) to a single iron(III) center, resulting in six-coordinate cationic complexes that are balanced in charge by tetrachloridoferrate(III) monoanions. The trans bisphosphane coordination is consistent will all previously reported molecular structures of six coordinate iron(III) complex cations with a (PP)2 X 2 (X = halido) donor set. The complex with dppen crystallizes in the centrosymmetric space group C2/c as a partial-occupancy [0.592 (4)] dichloromethane solvate, while the dpbz-ligated complex crystallizes in the triclinic space group P1 as a full dichloromethane monosolvate. Furthermore, the crystal studied of [(dpbz)2FeCl2][FeCl4]·CH2Cl2 was an inversion twin, whose component mass ratio refined to 0.76 (3):0.24 (3). Beyond a few very weak C—H...Cl and C—H...π interactions, there are no significant supramolecular features in either structure.

scholarly journals Ethyl 4-anilino-2-methyl-5-oxo-1-phenyl-2,5-dihydro-1H-pyrrole-2-carboxylate

2013 ◽  
Vol 69 (12) ◽  
pp. o1757-o1758 ◽  
Author(s):  
Mehmet Akkurt ◽  
Shaaban K. Mohamed ◽  
Mahmoud A. A. Elremaily ◽  
Francisco Santoyo-Gonzalez ◽  
Mustafa R. Albayati
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Phenyl Ring ◽  
Pyrrole Ring ◽  
Dihedral Angles ◽  
Π Interactions ◽  
Compound C ◽  
Ring Motif

In the title compound, C20H20N2O3, the central 2,5-dihydro-1H-pyrrole ring [r.m.s. deviation = 0.014 (1) Å] is oriented at dihedral angles of 77.81 (6) and 25.33 (6)°, respectively, to the attached phenyl ring and the aniline phenyl ring. An intramolecular N—H...O hydrogen bond occurs. In the crystal, molecules are linked through pairs of N—H...O hydrogen bonds, forming inversion dimers with anR22(10) ring motif. Two weak C—H...π interactions are also observed.

scholarly journals 2-[(1H-Pyrrol-2-yl)methyl]-1H-pyrrole

2013 ◽  
Vol 69 (11) ◽  
pp. o1697-o1697
Author(s):  
Chong-Hyeak Kim ◽  
Yea-Sel Jeon ◽  
Vincent Lynch ◽  
Jonathan L. Sessler ◽  
Kwang-Jin Hwang
Keyword(s):  
Dihedral Angle ◽  
Title Compound ◽  
Pyrrole Ring ◽  
Π Interactions ◽  
Compound C

In the title compound, C9H10N2, the two pyrrole ring planes are twisted by a dihedral angle of 69.07 (16)° and the C—C—C methane angle is 115.1 (2)°. In the crystal, molecules are connected into layers in thebcplane by N—H...π interactions.

scholarly journals 4-Chlorobenzoyl-meso-octamethylcalix[2]pyrrolidino[2]pyrrole: an acyl chloride derivative of a partially reduced calix[4] pyrrole

2012 ◽  
Vol 68 (4) ◽  
pp. o976-o977 ◽  
Author(s):  
Guillaume Journot ◽  
Reinhard Neier ◽  
Helen Stoeckli-Evans
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Pyrrole Ring ◽  
Acyl Chloride ◽  
Π Interactions ◽  
Compound C ◽  
Centroid Distance

In the title compound, C35H47ClN4O, the two pyrrolidine rings have envelope conformations. The conformation of the macrocycle is stabilized by N—H...N hydrogen bonds and a C—H...N interaction. The benzoyl ring is inclined to the adjacent pyrrole ring by 11.66 (11)°, with a centroid–centroid distance of 3.7488 (13) Å. In the crystal, molecules are linked by N—H...O hydrogen bonds into helical chains propagating in [010] and C—H...O and C—H...π interactions are also observed.

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