scholarly journals Structural Characterization of Quaterphenyl Cation Radical:  X-ray Crystallographic Evidence of Quinoidal Charge Delocalization in Poly-p-phenylene Cation Radicals

2007 ◽  
Vol 129 (26) ◽  
pp. 8070-8071 ◽  
Author(s):  
Moloy Banerjee ◽  
Sergey V. Lindeman ◽  
Rajendra Rathore
Keyword(s):  
Structural Characterization ◽  
Cation Radical ◽  
Charge Delocalization ◽  
X Ray ◽  
Cation Radicals

scholarly journals X-ray Structural Characterization of Charge Delocalization onto the Three Equivalent Benzenoid Rings in Hexamethoxytriptycene Cation Radical

2009 ◽  
Vol 11 (11) ◽  
pp. 2253-2256 ◽  
Author(s):  
Vincent J. Chebny ◽  
Tushar S. Navale ◽  
Ruchi Shukla ◽  
Sergey V. Lindeman ◽  
Rajendra Rathore
Keyword(s):  
Structural Characterization ◽  
Cation Radical ◽  
Charge Delocalization ◽  
X Ray

Vicinal-diaryl interactions in stilbenoid hydrocarbons as observed in the through-space charge delocalization of their cation radicals

1999 ◽  
Vol 77 (5-6) ◽  
pp. 913-921 ◽  
Author(s):  
Rajendra Rathore ◽  
Jay K Kochi
Keyword(s):  
Space Charge ◽  
Cation Radical ◽  
Conformational Preference ◽  
Charge Delocalization ◽  
X Ray ◽  
X Ray Crystallography ◽  
Cation Radicals ◽  
Near Ir ◽  
Aromatic Interactions ◽  
Vis Spectroscopy

The conformational preference of vicinal or 1,2-phenyl groups is probed in two classes of ring-substituted 1,2-diphenylbicyclooctene (stilbenoid) hydrocarbons 1a-1d and 2a-2c. UV-vis spectroscopy reveals, and X-ray crystallography verifies, the intramolecular (edge-to-face) orientation for the phenyl-phenyl interaction in stilbenoids 1a-1d. Most importantly, when two pairs of ortho-methyl substituents are present, the cofacial phenyl groups in the stilbenoid donors are established by X-ray crystallography and spectrally observed in the cation radicals (2a+.-2c+.) by the appearance of new bands with strong absorptions in the near IR with λmax = 1100-1315 nm, analogous to those previously observed in intermolecular (aromatic) interactions of aromatic cation radicals.Key words: stilbenoid hydrocarbon, cation radical, aryl-aryl interaction.

scholarly journals Isolation and X-ray structural characterization of a dicationic homotrimer of 2,3,6,7-tetramethoxy-9,10-dimethylanthracene cation radical

2009 ◽  
Vol 50 (48) ◽  
pp. 6687-6690 ◽  
Author(s):  
Matthew J. Modjewski ◽  
Ruchi Shukla ◽  
Sergey V. Lindeman ◽  
Rajendra Rathore
Keyword(s):  
Structural Characterization ◽  
Cation Radical ◽  
X Ray

scholarly journals Synthesis, Electronic Properties, and X-ray Structural Characterization of Tetrarylbenzo[1,2-b:4,5-b′]difuran Cation Radicals

2008 ◽  
Vol 10 (16) ◽  
pp. 3587-3590 ◽  
Author(s):  
Ruchi Shukla ◽  
Shriya H. Wadumethrige ◽  
Sergey V. Lindeman ◽  
Rajendra Rathore
Keyword(s):  
Electronic Properties ◽  
Structural Characterization ◽  
X Ray ◽  
Cation Radicals

Structural Characterization of Novel Olefinic Cation Radicals: X-ray Crystallographic Evidence of σ–π Hyperconjugation

2000 ◽  
Vol 112 (20) ◽  
pp. 3817-3820 ◽  
Author(s):  
Jay K. Kochi ◽  
Rajendra Rathore ◽  
Chengjian Zhu, and ◽  
Sergey V. Lindeman
Keyword(s):  
Structural Characterization ◽  
X Ray ◽  
Cation Radicals

scholarly journals Isolation and X-ray structural characterization of tetraisopropylpyrene cation radical

2008 ◽  
pp. 1889 ◽  
Author(s):  
Moloy Banerjee ◽  
Vijay S. Vyas ◽  
Sergey V. Lindeman ◽  
Rajendra Rathore
Keyword(s):  
Structural Characterization ◽  
Cation Radical ◽  
X Ray

New horizons for the structural characterization of stainless steel slags by X-ray powder diffraction

2007 ◽  
Vol 2007 (suppl_26) ◽  
pp. 61-66 ◽  
Author(s):  
B. Peplinski ◽  
B. Adamczyk ◽  
G. Kley ◽  
K. Adam ◽  
F. Emmerling ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Powder Diffraction ◽  
Structural Characterization ◽  
X Ray ◽  
New Horizons

scholarly journals Structural Characterization of Heterodinuclear ZnII-LnIII Complexes (Ln = Pr, Nd) with a Ring-Contracted H2valdien-Derived Schiff Base Ligand

2021 ◽  
Author(s):  
Shabana Noor ◽  
Richard Goddard ◽  
Fehmeeda Khatoon ◽  
Sarvendra Kumar ◽  
Rüdiger W. Seidel
Keyword(s):  
Molecular Structure ◽  
Schiff Base ◽  
Structural Characterization ◽  
Schiff Base Ligand ◽  
Crystal And Molecular Structure ◽  
X Ray ◽  
X Ray Crystallography ◽  
Imidazoline Ring

AbstractSynthesis and structural characterization of two heterodinuclear ZnII-LnIII complexes with the formula [ZnLn(HL)(µ-OAc)(NO3)2(H2O)x(MeOH)1-x]NO3 · n H2O · n MeOH [Ln = Pr (1), Nd (2)] and the crystal and molecular structure of [ZnNd(HL)(µ-OAc)(NO3)2(H2O)] [ZnNd(HL)(OAc)(NO3)2(H2O)](NO3)2 · n H2O · n MeOH (3) are reported. The asymmetrical compartmental ligand (E)-2-(1-(2-((2-hydroxy-3-methoxybenzylidene)amino)-ethyl)imidazolidin-2-yl)-6-methoxyphenol (H2L) is formed from N1,N3-bis(3-methoxysalicylidene)diethylenetriamine (H2valdien) through intramolecular aminal formation, resulting in a peripheral imidazoline ring. The structures of 1–3 were revealed by X-ray crystallography. The smaller ZnII ion occupies the inner N2O2 compartment of the ligand, whereas the larger and more oxophilic LnIII ions are found in the outer O2O2’ site. Graphic Abstract Synthesis and structural characterization of two heterodinuclear ZnII-LnIII complexes (Ln = Pr, Nd) bearing an asymmetrical compartmental ligand formed in situ from N1,N3-bis(3-methoxysalicylidene)diethylenetriamine (H2valdien) through intramolecular aminal formation are reported.

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