Mixed‐Metal Oxo Clusters Structurally Derived from Ti₆O₄(OR)₈(OOCR′)₈

Abstract

The mixed-metal oxo clusters FeTi5O4(OiPr)4(OMc)10 (OMc = methacrylate), Zn2Ti4O4(OiPr)2(OMc)10, Cd4Ti2O2(OAc)2(OMc)10(HOiPr)2, [Ca2Ti4O4(OAc)2(OMc)10]n, and [Sr2Ti4O4(OMc)12(HOMc)2]n were obtained from the reaction of titanium alkoxides with the corresponding metal acetates and methacrylic acid. Their structures are derived from Ti clusters with the composition Ti6O4(OR)8(OOCR′)8. The Ca and Sr derivatives consist of chains of condensed clusters.

Ion‐Size‐Dependent Formation of Mixed Titanium/Lanthanide Oxo Clusters

“…on Sm). The same cluster was obtained when Sm/Ti/McOH molar ratios of 2:1:13.5 and 1:2:13.5 were employed 1. H NMR (CD 2 Cl 2 , 250 MHz): δ = 1.52-1.80 (m, 6 H, CH 3 ), 1.97 (br.…”

“…These clusters have a basic hexanuclear structure that varies according to the size and coordination number of the M 2+ ions. [1] In another series of Ti/M oxo clusters with divalent metals (M = Sr, Pb), crown ether type structures were obtained. [2] The clusters were prepared by the reaction of Ti(OR) 4 with the corresponding metal acetate [M(OAc) 2 ] and methacrylic acid (McOH).…”

Heterobimetallic sol–gel precursors and intermediates

“…14) [41]. Their structures are derived from those of monometallic clusters with the composition Ti 6 O 4 (OR) 8 (OOCR 0 ) 8 for which various R/R 0 combinations are known [21].…”

Ein Vergleich der Chemie von Silicium und Titan

“… Silicon‐ähnliche TI‐Verbindungen Links: [TiO(methacrylat) 2 ] 8 als Beispiel für ein basisches Titan‐Carboxylat, TiO(OOCR) 2 . Rechts: „D4“ = (Me 2 SiO) 4 .…”