Ruthenium compounds containing pyridyltriazines with low-lying .pi.* orbitals

1990 ◽  
Vol 29 (5) ◽  
pp. 988-993 ◽  
Author(s):  
Ronald Hage ◽  
John H. Van Diemen ◽  
Grant Ehrlich ◽  
Jaap G. Haasnoot ◽  
Derk J. Stufkens ◽  
...  
Keyword(s):  
Ruthenium Compounds ◽  
Pi Orbitals

On the Linear Geometry of Lanthanide Hydroxide (Ln—OH, Ln=La-Lu)

2019 ◽  
Author(s):  
Hassan Harb ◽  
Lee Thompson ◽  
Hrant Hratchian
Keyword(s):  
Triple Bond ◽  
Density Functional ◽  
Valence Electron ◽  
Density Functional Theory Calculations ◽  
Electron Configuration ◽  
Functional Theory ◽  
Key Species ◽  
Pi Orbitals ◽  
Lanthanide Hydroxide ◽  
Linear Geometry

Lanthanide hydroxides are key species in a variety of catalytic processes and in the preparation of corresponding oxides. This work explores the fundamental structure and bonding of the simplest lanthanide hydroxide, LnOH (Ln=La-Lu), using density functional theory calculations. Interestingly, the calculations predict that all structures of this series will be linear. Furthermore, these results indicate a valence electron configuration featuring an occupied sigma orbital and two occupied pi orbitals for all LnOH compounds, suggesting that the lanthanide-hydroxide bond is best characterized as a covalent triple bond.

On the Linear Geometry of Lanthanide Hydroxide (Ln—OH, Ln=La-Lu)

2019 ◽  
Author(s):  
Hassan Harb ◽  
Lee Thompson ◽  
Hrant Hratchian
Keyword(s):  
Triple Bond ◽  
Density Functional ◽  
Valence Electron ◽  
Density Functional Theory Calculations ◽  
Electron Configuration ◽  
Functional Theory ◽  
Key Species ◽  
Pi Orbitals ◽  
Lanthanide Hydroxide ◽  
Linear Geometry

Lanthanide hydroxides are key species in a variety of catalytic processes and in the preparation of corresponding oxides. This work explores the fundamental structure and bonding of the simplest lanthanide hydroxide, LnOH (Ln=La-Lu), using density functional theory calculations. Interestingly, the calculations predict that all structures of this series will be linear. Furthermore, these results indicate a valence electron configuration featuring an occupied sigma orbital and two occupied pi orbitals for all LnOH compounds, suggesting that the lanthanide-hydroxide bond is best characterized as a covalent triple bond.

Synthesis of Photodefinable RuO2 Precursors For Electrode Contacts

1997 ◽  
Vol 493 ◽  
Author(s):  
K. J. Law ◽  
Y. H. Spooner
Keyword(s):  
Chemical Process ◽  
Ruthenium Complexes ◽  
Ferroelectric Thin Film ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ruthenium Compounds ◽  
Straight Line ◽  
Wet Chemical ◽  
Pattern Forming ◽  
Pattern Resolution

ABSTRACTA wet-chemical process for depositing and patterning RuO2 contacts for use in ferroelectric thin film capacitive devices is described. Three new ruthenium compounds containing photocrosslinkable organic groups have been synthesized which polymerize upon UV exposure. Preliminary pattern forming ability of the new precursors has been tested with the use of a simple straight line contact mask. The exposed portions of the precursor films are resistant to ethanol, acetone, and light abrasion. The formation of crystalline RuO2 upon organic pyrolysis was confirmed by x-ray diffraction. Synthesized ruthenium complexes were compared to commercially available ruthenium acetylacetonate. The synthesized organo-ruthenium complexes showed improvement in pattern resolution and clarity.

scholarly journals Organic synthesis using ruthenium compounds.

1988 ◽  
Vol 46 (10) ◽  
pp. 930-942 ◽  
Author(s):  
Shun-Ichi MURAHASHI ◽  
Takeshi NAOTA
Keyword(s):  
Organic Synthesis ◽  
Ruthenium Compounds

Anticancer and antitrypanosomal activities of trinuclear ruthenium compounds with orthometalated phenazine ligands

2020 ◽  
Vol 49 (45) ◽  
pp. 16440-16452 ◽  
Author(s):  
Camila Fontes Neves da Silva ◽  
Pedro Branco Hauch Chrispim ◽  
Bruna Possato ◽  
Gisele Bulhões Portapilla ◽  
Thomas N. Rohrabaugh ◽  
...  
Keyword(s):  
Dna Intercalation ◽  
Melanoma Cancer ◽  
Ruthenium Compounds

Four metalo-intercalators ([Ru3(μ3-O)(μ2-OAc)5(L)(py)2]PF6, L = phenazines) present high DNA intercalation constants and high HSA affinity. They are active against melanoma cancer and T. Cruzi parasite.

scholarly journals Recent Developments in the Interactions of Classic Intercalated Ruthenium Compounds: [Ru(bpy)2dppz]2+ and [Ru(phen)2dppz]2+ with a DNA Molecule

Molecules ◽  
2019 ◽  
Vol 24 (4) ◽  
pp. 769 ◽  
Author(s):  
Fuchao Jia ◽  
Shuo Wang ◽  
Yan Man ◽  
Parveen Kumar ◽  
Bo Liu
Keyword(s):  
Single Molecule ◽  
Specific Binding ◽  
Equilibrium Constants ◽  
Binding Modes ◽  
Dna Molecule ◽  
Intercalated Compounds ◽  
Ruthenium Compounds ◽  
Recent Developments ◽  
Dynamic Assembly ◽  
Dna Helix

[Ru(bpy)2dppz]2+ and [Ru(phen)2dppz]2+ as the light switches of the deoxyribose nucleic acid (DNA) molecule have attracted much attention and have become a powerful tool for exploring the structure of the DNA helix. Their interactions have been intensively studied because of the excellent photophysical and photochemical properties of ruthenium compounds. In this perspective, this review describes the recent developments in the interactions of these two classic intercalated compounds with a DNA helix. The mechanism of the molecular light switch effect and the selectivity of these two compounds to different forms of a DNA helix has been discussed. In addition, the specific binding modes between them have been discussed in detail, for a better understanding the mechanism of the light switch and the luminescence difference. Finally, recent studies of single molecule force spectroscopy have also been included so as to precisely interpret the kinetics, equilibrium constants, and the energy landscape during the process of the dynamic assembly of ligands into a single DNA helix.

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