Crystal and molecular structures of di-.mu.-Oxo-bis(diacetylacetonatotitanium(IV))-bisdioxane, (TiO)C5H7O2)2)2.2C4H8O2, di-.mu.-Oxo-bis(diacetylacetonatotitanium(IV)), (TiO(C5H7O2)2)2

Synthesis, characterization, and steric hindrance comparisons of selected transition and main group metal β-ketoiminato complexes

“…3 and 4. In the dimer, 1, the distance between the non-bonding titanium centers is 2.7527(10) Å which can be compared to the Ti-Ti distance in bulk titanium of 2.896 Å [4], and to related systems [5] such as [TiO(acac) 2 ] with a Ti-Ti separation of 2.729(1) Å [6]. The dimensions within tetramer 2 are $3.6 Å from Ti to Ti, which compares well to related systems[7] such as ammonium tetrakis((l 2 -oxo)-bis(oxalato-O,O')-titanium) tetrahydrate that has a Ti-Ti separation of $3.5 Å [8].…”

Formation and Structural Characterisation of an Unusual Cyclic HexamericOxotitanium Complex

“…[23,24] moisture. [39] The disorder found for the ligand bound to Ti (6) oxygens (less 140 pm for oxygen van der Waals radii), is was modelled using two conformations which refined to occupanc-451, 447 and 480 pm for O(10)···O(40), O(30)···O(60) and ies of 0.680(4) and 0.320(4) (see Figure 2). coordination numbers of 5 [8,25Ϫ27] and 7.…”

Formation and Structural Characterisation of an Unusual Cyclic HexamericOxotitanium Complex

“…We have isolated a crystalline derivative of N-methyldiin the formation of sol-gel materials, and is used to control ethanolamine (MDEA), of composition Ti 6 O 6 (MDEA) 6 · the hydrolysis rate and condensation pathways of the oxo-2CH 2 Cl 2 . This compound was obtained by the hydrolysis alkoxide fragments.…”

“…chloromethane {C(31)ϪH(31A)···Cl(2), H···Cl ϭ 270 pm} The structure was solved by direct methods (SHELXS-97) [38] The macrocycle hole size, measured between opposite SHELXL-97. [39] The disorder found for the ligand bound to Ti (6) oxygens (less 140 pm for oxygen van der Waals radii), is was modelled using two conformations which refined to occupanc-451, 447 and 480 pm for O(10)···O (40), O(30)···O(60) and ies of 0.680(4) and 0.320(4) (see Figure 2). All hydrogen atoms were O(20)···O(50) respectively.…”