X-ray crystallographic studies of osmium and ruthenium complexes of multianionic, polypyridyl and tertiary amine ligands

1991 ◽  
Author(s):  
Wai-fong Tong
Keyword(s):  
Tertiary Amine ◽  
Ruthenium Complexes ◽  
X Ray ◽  
Amine Ligands

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.

Cyclopentadienyl ruthenium complexes with tricarbollide ligands

2010 ◽  
Vol 75 (11) ◽  
pp. 1139-1148 ◽  
Author(s):  
Dmitry S. Perekalin ◽  
Evgeniya A. Trifonova ◽  
Ivan V. Glukhov ◽  
Josef Holub ◽  
Alexander R. Kudinov
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Ruthenium Complexes ◽  
Light Irradiation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ca 50

Reaction of the tricarbollide anion [7,8,9-C3B8H11]– (1a) with the naphthalene complex [CpRu(C10H8)]+ under visible light irradiation in CH2Cl2 gives the 12-vertex closo-ruthenacarborane 1-Cp-1,2,3,5-RuC3B8H11 (2; 87% yield). This complex was also obtained by reaction of 1a with CpRu(cod)Cl (97%). Upon heating at 80 °C in toluene 2 rearranges into isomer 1-Cp-1,2,4,10-RuC3B8H11 (3; 63%). Irradiation of 1a with [CpRu(C10H8)]+ in acetone gives the 11-vertex closo-1-Cp-1,2,3,4-RuC3B7H10 (4; 32%). The latter was also prepared by reaction of 1a with [CpRu(MeCN)3]+ (59%). Compound 2 slowly undergoes cage contraction in acetone giving 4. Irradiation of 1a with [Cp*Ru(C10H8)]+ affords the isomeric 12-vertex closo-ruthenacarboranes 1-Cp*-1,2,3,5-RuC3B8H11 and 1-Cp*-1,2,4,10-RuC3B8H11 (2.2:1 ratio; 56%). Reaction of the amino-substituted tricarbollide anion [7-tBuNH-7,8,9-C3B8H10]– with [(C5R5)Ru(C10H8)]+ (R = H, Me) selectively gives 12-vertex closo-ruthenacarboranes 1-(C5R5)-12-tBuNH-1,2,4,12-RuC3B8H10 (ca. 50%). The structures of 2 and 4 were confirmed by X-ray diffraction.

Enantioselective Arylation of 3-Carboxamide Oxindoles with Quinone Monoimines and Synthesis of Chiral Spirooxindole-benzofuranones

Synlett ◽  
2019 ◽  
Vol 30 (09) ◽  
pp. 1067-1072
Author(s):  
Hui Chen ◽  
Hui Liu ◽  
Si-Han Zhao ◽  
Shao-Bing Cheng ◽  
Xiao-Ying Xu ◽  
...  
Keyword(s):  
Structural Analysis ◽  
Absolute Configuration ◽  
Tertiary Amine ◽  
The Other ◽  
X Ray ◽  
Quaternary Center ◽  
Crystal Structural ◽  
The Absolute

A highly enantioselective arylation of 3-carboxamide oxoindoles with quinone monoimines is described. Various 3-aryl-3-carboxamide oxindoles with an all-carbon quaternary center were obtained in moderate to good yields (up to 99%) with moderate to good enantioselectivities (up to 98%) in the presence of a bifunctional thiourea-tertiary amine catalyst. The absolute configuration of one product was determined by an X-ray crystal structural analysis and the absolute configurations of the other products can be assigned by analogy. Moreover, several chiral spirooxindole-benzofuranones were synthesized from the 3-aryl-3-carboxamide oxindoles in moderate yields with moderate to good enantioselectivities.

Synthese von vier- und achtgliedrigen Heterocyclen, die Schwefel, Stickstoff und Phosphor enthalten, und die Röntgenstrukturanalyse eines phosphorhaltigen achtgliedrigen SN-Ringes / Synthesis of Four- and Eight-Membered Heterocycles Containing Sulfur, Nitrogen and Phosphorus and the X-ray Structure of a Phosphorus-Containing Eight-Membered SN-Ring

1980 ◽  
Vol 35 (9) ◽  
pp. 1130-1136 ◽  
Author(s):  
Herbert W. Roesky ◽  
Sushil K. Mehrotra ◽  
Christoph Platte ◽  
Djamrnschid Amirzadeh-Asl ◽  
Bernhard Roth
Keyword(s):  
Tertiary Amine ◽  
Phosphorus Atom ◽  
Mass Spectra ◽  
Phosphorus Pentachloride ◽  
Membered Ring ◽  
Phosphonium Salts ◽  
Nitrogen And Phosphorus ◽  
Orthorhombic Space Group ◽  
X Ray ◽  
Phosphorus Containing

Eight-membered rings of the composition [SO2(NR)2PR′]2 3a-d with R = CH3, C2H5, and R′ = CH3, C6H5, were prepared from substituted sulfamides and dichlorophosphanes in the presence of a tertiary amine. These molecules were characterized on the basis of 1H and 31P NMR investigations and of mass spectra. 3 a reacts with phosphorus pentachloride to yield the spirocyclic derivative 4 with the phosphorus atom in the center of two four-membered rings. Methyliodide reacts with 3 a and 3 b under opening of the eight- membered ring and formation of phosphonium salts. The structure of 3 b is discussed in detail. 8b crystallizes in the orthorhombic space group Pna 21 with a = 12.60(0), b = 13.27(1), c = 12.62(4) Å.

Ruthenium complexes containing the hemilabile ligand PPh2(CH2)P(O)PPh2 (dppmO): reactivity towards CO and X-ray molecular structures of tcc-RuCl2(η2-dppmO)2 and mer-RuCl3(η1,η2-dppmO)2

Polyhedron ◽  
2005 ◽  
Vol 24 (9) ◽  
pp. 1063-1070 ◽  
Author(s):  
Marcella P. Felicissimo ◽  
Alzir A. Batista ◽  
Antonio G. Ferreira ◽  
Javier Ellena ◽  
Eduardo E. Castellano
Keyword(s):  
Ruthenium Complexes ◽  
Molecular Structures ◽  
X Ray

Synthetic, X-ray Diffraction, Electrochemical, and Density Functional Theoretical Studies of (Indenyl)ruthenium Complexes Containing Dithiolate Ligands

2007 ◽  
Vol 2007 (24) ◽  
pp. 3827-3840 ◽  
Author(s):  
Sin Yee Ng ◽  
Jialin Tan ◽  
Wai Yip Fan ◽  
Weng Kee Leong ◽  
Lai Yoong Goh ◽  
...  
Keyword(s):  
Density Functional ◽  
Ruthenium Complexes ◽  
Theoretical Studies ◽  
X Ray Diffraction ◽  
X Ray
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