A new bifunctional ligand: C5Me4SiMe2OSiMe2O2−. Synthesis, properties and crystal structure of the first Yb(II) half-sandwich complex with a heterobidentate cyclopentadienyl ligand, [{(η5-C5Me4)SiMe2OSiMe2(η1-O)}Yb(thf)]2

1999 ◽  
pp. 2203-2204 ◽  
Author(s):  
Alexander A. Trifonov ◽  
Evgenii N. Kirillov ◽  
Mikhail N. Bochkarev ◽  
Axel Fischer ◽  
Frank T. Edelmann
Keyword(s):  
Crystal Structure ◽  
Sandwich Complex ◽  
Bifunctional Ligand ◽  
Cyclopentadienyl Ligand ◽  
Synthesis Properties ◽  
Half Sandwich

Preparation and Crystal Structure of Bis(tert-butyltetramethylcyclopentadienyl)dichlorotitanium

2005 ◽  
Vol 70 (10) ◽  
pp. 1589-1603 ◽  
Author(s):  
Lenka Lukešová ◽  
Róbert Gyepes ◽  
Jiří Pinkas ◽  
Michal Horáček ◽  
Jiří Kubišta ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Electronic Absorption ◽  
Electronic Absorption Spectra ◽  
Isomer Mixture ◽  
Sandwich Complex ◽  
Considerable Decrease ◽  
Methyl Group ◽  
Hydrolytic Product ◽  
Butyl Group ◽  
Half Sandwich

[TiCl2(η5-C5Me4t-Bu)2] (1) was prepared by the reaction of [TiCl3(thf)3] with 2 equivalents of Li(η5-C5Me4t-Bu) (made by adding BuLi to a 1.33 molar excess of a mixture of tert-butyltetramethylcyclopentadiene isomers in THF) and subsequent oxidation of the Ti(III) intermediate to 1 by adding aqueous HCl. Neglecting the presence of cyclopentadiene isomers not forming the cyclopentadienide anion in the isomer mixture used for the synthesis of 1 resulted in the formation of hydrolytic product [{TiCl2(η5-C5Me4t-Bu)}2(μ-O)] (2) and a considerable decrease of yield of 1. The half sandwich complex [TiCl3(η5-C5Me4t-Bu)] (3) was obtained by synproportionation of 1 and TiCl4. Crystal structures of 1, 2, and 3 were determined. The electronic absorption spectra of 1 and 3 indicate a stronger electron-donor effect of tert-butyl group compared with methyl group.

scholarly journals Crystal structure of the η4-ketimine titanium complex (diphenylamido-κN){3-methyl-6-[(4-methylphenyl)(phenylazanidyl)methylidene]cyclohexa-2,4-dien-1-yl-κ2N,C1}(η5-pentamethylcyclopentadienyl)titanium(IV)

2018 ◽  
Vol 74 (1) ◽  
pp. 34-37
Author(s):  
Malte Fischer ◽  
Marc Schmidtmann ◽  
Rüdiger Beckhaus
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Intermolecular Interactions ◽  
Coordination Mode ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Sandwich Complex ◽  
Titanium Complex ◽  
Half Sandwich

The molecular structure of the title titanium(IV) half-sandwich complex, [Ti(η5-C10H15)(η4-C21H19N)(C12H10N)], shows a three-legged piano-stool geometry at the central TiIVatom, comprising of one pentamethylcyclopentadienyl ligand, one bidentate ketimine ligand in an η4-coordination mode and one monodentate diphenylamide ligand. Except for van der Waals forces, there are no significant intermolecular interactions in the crystal.

Half-sandwich ruthenium complexes of a P–O bifunctional ligand. X-Ray crystal structure of [Ru(η-C5Me5)(OC6H4PPh2){PPh2(C6H4OH)}]

1990 ◽  
pp. 1179-1182 ◽  
Author(s):  
Massimo Canestrari ◽  
Bruno Chaudret ◽  
Françoise Dahan ◽  
Yong-Sheng Huang ◽  
René Poilblanc ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Ruthenium Complexes ◽  
X Ray ◽  
Bifunctional Ligand ◽  
Half Sandwich

scholarly journals Uranium(iv) cyclobutadienyl sandwich compounds: synthesis, structure and chemical bonding

2020 ◽  
Vol 56 (6) ◽  
pp. 944-947 ◽  
Author(s):  
Nikolaos Tsoureas ◽  
Akseli Mansikkamäki ◽  
Richard A. Layfield
Keyword(s):  
Chemical Bonding ◽  
Molecular Structures ◽  
Sandwich Complexes ◽  
Sandwich Complex ◽  
Sandwich Compounds ◽  
Bonding Properties ◽  
Half Sandwich

The synthesis, molecular structures and bonding properties of two uranium(iv) cyclobutadienyl half-sandwich complexes and a doubly activated cyclobutadienyl sandwich complex are described.

[(C9H7)YbI(DME)2], the First Indenyl Half-Sandwich Complex of Divalent Ytterbium

2001 ◽  
Vol 2001 (12) ◽  
pp. 3055-3058 ◽  
Author(s):  
Alexander A. Trifonov ◽  
Eugenii N. Kirillov ◽  
Sebastian Dechert ◽  
Herbert Schumann ◽  
Mikhail N. Bochkarev
Keyword(s):  
Sandwich Complex ◽  
Half Sandwich

The (η-1,7'-2,2')4,8'-8,4'-(Bis-μ-o-phenylene)bisdicarbollidocobalt(1-)ate Ion [3-Co-4,8'-8,4'(o-C6H4)2(1,2-C2B9H9)2](-). The First Doubly Bridged Metallacarborane Complex. Synthesis, Properties and Structure

1995 ◽  
Vol 60 (8) ◽  
pp. 1297-1302 ◽  
Author(s):  
Jaromír Plešek ◽  
Stanislav Heřmánek
Keyword(s):  
Sandwich Complex ◽  
Counter Ion ◽  
Synthesis Properties

The first cobaltacarborane sandwich complex [3-Co-4,8'-8,4'(o-C6H4)2(1,2-C2B9H9)2](-) with two o-phenylene bridges between both deltahedral ligands is described. Phenylene rings containing angle of 72 grad bind the Cs counter-ion probably via π-donation. This is why the solubility of Cs salt in water is extremely low. Synthesis, properties and structure of the Cs salt are described.

Synthesis, properties and crystal structure of thecharge-transfer salt (DBTTF) 6HSi Mo12O404H2O

Polyhedron ◽  
1998 ◽  
Vol 18 (3-4) ◽  
pp. 481-485 ◽  
Author(s):  
Yaguang Chen ◽  
Jingfu Liu ◽  
Qun Liu ◽  
Yan Xing Yonghua Lin ◽  
Hengqing Jia
Keyword(s):  
Crystal Structure ◽  
Synthesis Properties
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