Preparation and structural characterization of nitrosyl complexes of ferric porphyrinates. Molecular structure of aquonitrosyl(meso-tetraphenylporphinato)iron(III) perchlorate and nitrosyl(octaethylporphinato)iron(III) perchlorate

1984 ◽  
Vol 106 (11) ◽  
pp. 3191-3198 ◽  
Author(s):  
W. Robert Scheidt ◽  
Young Ja Lee ◽  
Keiichiro Hatano
Keyword(s):  
Molecular Structure ◽  
Structural Characterization ◽  
Nitrosyl Complexes

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.

The synthesis and structural characterization of new Tc(I) nitrosyl complexes

2010 ◽  
Vol 37 (6) ◽  
pp. 681
Author(s):  
Terrence Nicholson ◽  
Ashfaq Mahmood ◽  
Fiorenzo Refosco ◽  
Frencesco Tisato ◽  
Peter Müller ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Nitrosyl Complexes

scholarly journals Synthesis and structural characterization of hexa-μ2-chlorido-μ4-oxido-tetrakis{[4-(phenylethynyl)pyridine-κN]copper(II)} dichloromethane monosolvate

2021 ◽  
Vol 77 (1) ◽  
pp. 42-46
Author(s):  
Rayya A. Al Balushi ◽  
Muhammad S. Khan ◽  
Md. Serajul Haque Faizi ◽  
Ashanul Haque ◽  
Kieran Molloy ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Structural Characterization ◽  
Title Compound ◽  
Three Dimensional ◽  
Hirshfeld Surface ◽  
The Core ◽  
Dimensional Network ◽  
Packing Arrangement

In the crystal structure of the title compound, [Cu4Cl6O(C13H9N)4]·CH2Cl2, the core molecular structure consists of a Cu4 tetrahedron with a central interstitial O atom. Each edge of the Cu4 tetrahedron is bridged by a chlorido ligand. Each copper(II) cation is coordinated to the central O atom, two chlorido ligands and one N atom of the 4-phenylethynylpyridine ligand. In the crystal, the molecules are linked by intermolecular C—H...Cl interactions. Furthermore, C—H...π and π–π interactions also connect the molecules, forming a three-dimensional network. Hirshfeld surface analysis indicates that the most important contributions for the packing arrangement are from H...H and C...H/H...C interactions.

scholarly journals Synthesis and structural characterization of some molybdenum carbonyl nitrosyl complexes of diethyldithiocarbamate

1995 ◽  
Vol 229 (1-2) ◽  
pp. 153-163 ◽  
Author(s):  
Kom-Bei Shiu ◽  
Sheng-Ting Lin ◽  
Shie-Ming Peng ◽  
Ming-Chu Cheng
Keyword(s):  
Structural Characterization ◽  
Nitrosyl Complexes ◽  
Molybdenum Carbonyl

scholarly journals Characterization of a Natural Dye by Spectroscopic and Chromatographic Techniques

2012 ◽  
Vol 1374 ◽  
pp. 49-59 ◽  
Author(s):  
Y. Espinosa-Morales ◽  
J. Reyes ◽  
B. Hermosín ◽  
J. A. Azamar-Barrios
Keyword(s):  
Molecular Structure ◽  
Phenolic Compounds ◽  
Central America ◽  
Structural Characterization ◽  
Chemical Properties ◽  
The Other ◽  
Chromatographic Techniques ◽  
Ft Ir ◽  
Color Source

ABSTRACTNatural dyes have been extracted from both plants and animal to give color to textiles and handicrafts. This is the case of purple dye extracted from Justicia spicigera Schldt, an acanthaceae used as a color source since pre-Hispanic period in the Mayan area of Mexico and Central America. Spectroscopic (UV-Vis and FT-IR) and chromatographic (PY-GC/MS) techniques were employed in order to characterize some of their chemical properties. UV-VIS absorption spectra indicates a λmaxpeak at 581 nm, value associated to anthocyanins group under bathochromic effect. On the other hand, a structural characterization realized by FT-IR and Py-GC/MS indicated the presence of polar hydroxibenzoic acids and phenolic compounds which are characteristics of the molecular structure of anthocyanins.

scholarly journals Hydrosilyation of CO2 using a silatrane hydride: structural characterization of a silyl formate compound

2021 ◽  
Vol 99 (2) ◽  
pp. 259-267
Author(s):  
Serge Ruccolo ◽  
Erika Amemiya ◽  
Daniel G. Shlian ◽  
Gerard Parkin
Keyword(s):  
Molecular Structure ◽  
Density Functional Theory ◽  
Oxygen Atom ◽  
Structural Characterization ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
X Ray Diffraction ◽  
Functional Theory ◽  
X Ray

The silatrane hydride compound, [N(CH2CH2O)3]SiH, reacts with CO2 in the presence of the [tris(2-pyridylthio)methyl]zinc hydride complex, [Tptm]ZnH, to afford the silyl formate and methoxide derivatives, [N(CH2CH2O)3]SiO2CH and [N(CH2CH2O)3]SiOCH3. The molecular structure of [N(CH2CH2O)3]SiO2CH has been determined by X-ray diffraction, thereby demonstrating that the formate ligand adopts a distal conformation in which the uncoordinated oxygen atom resides with a trans-like disposition relative to silicon. Density functional theory calculations indicate that the atrane motif of [N(CH2CH2O)3]SiO2CH is flexible, such that the energy of the molecule changes relatively little as the Si···N distance varies over the range 2.0–3.0 Å.

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