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Mixed-Metal Oxo Clusters Structurally Derived from Ti6O4(OR)8(OOCR')8.

Artner C, Koyun A, Czakler M, Schubert U - Eur J Inorg Chem (2014)

Bottom Line: 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.

View Article: PubMed Central - PubMed

Affiliation: Institute of Materials Chemistry, Vienna University of Technology Getreidemarkt 9, 1060 Vienna, Austria.

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.

No MeSH data available.


Molecular structure ofCd4Ti2(μ3-O)2(μ3-OAc)2(μ3-OMc)2(μ2-OMc)8(HOiPr)2(Cd4Ti2). Only hydrogen of the OH groups are shown. Selected bond lengths and angles: Ti1–Cd13.4499(9), Ti1–Cd2 3.4521(9), Cd1–Cd2 3.8904(8), Ti1–O1 1.698(2), Cd1–O12.262(2), Cd2–O1 2.267(2), Cd1–O2 2.260(2), Cd1′–O2 2.355(2),Cd1–O4 2.232(2), Cd2–O3 2.267(3), Cd2–O4 2.336(2), Cd2–O5 2.368(2),Ti1–O7 2.012(2), Ti1–O9 1.997(2), Ti1–O11 1.977(2), Ti1–O13 1.986(2),Ti1–O14 2.227(2), Cd1–O6 2.256(2), Cd1–O8 2.260(2), Cd2–O10 2.279(3),Cd2–O12 2.228(3) Å; Cd1–O1–Cd2 118.40(9), Cd1–O1–Ti1120.55(11), Cd2–O1–Ti1 120.36(11)°.
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fig04: Molecular structure ofCd4Ti2(μ3-O)2(μ3-OAc)2(μ3-OMc)2(μ2-OMc)8(HOiPr)2(Cd4Ti2). Only hydrogen of the OH groups are shown. Selected bond lengths and angles: Ti1–Cd13.4499(9), Ti1–Cd2 3.4521(9), Cd1–Cd2 3.8904(8), Ti1–O1 1.698(2), Cd1–O12.262(2), Cd2–O1 2.267(2), Cd1–O2 2.260(2), Cd1′–O2 2.355(2),Cd1–O4 2.232(2), Cd2–O3 2.267(3), Cd2–O4 2.336(2), Cd2–O5 2.368(2),Ti1–O7 2.012(2), Ti1–O9 1.997(2), Ti1–O11 1.977(2), Ti1–O13 1.986(2),Ti1–O14 2.227(2), Cd1–O6 2.256(2), Cd1–O8 2.260(2), Cd2–O10 2.279(3),Cd2–O12 2.228(3) Å; Cd1–O1–Cd2 118.40(9), Cd1–O1–Ti1120.55(11), Cd2–O1–Ti1 120.36(11)°.

Mentions: Reaction of Cd(OAc)2 and an equimolar proportion ofTi(OiPr)4 with a tenfold excess amount of methacrylic acid resulted incentrosymmetricCd4Ti2O2(OAc)2(OMc)10(HOiPr)2(Cd4Ti2, Figure4). The structure of this cluster can againbe related to that of Ti6, but there are more profound changes. (i) In contrast to the structuresdiscussed before, the four Ti atoms in the center are replaced by Cd atoms, (ii) acetate groups[originating from the Cd(OAc)2 precursor] were incorporated in thestructure, (iii) two Cd atoms are bridged across the Cd4O4 ring, and (iv) thestructure contains no μ2-oxygen atoms, only the μ3-O units areretained.


Mixed-Metal Oxo Clusters Structurally Derived from Ti6O4(OR)8(OOCR')8.

Artner C, Koyun A, Czakler M, Schubert U - Eur J Inorg Chem (2014)

Molecular structure ofCd4Ti2(μ3-O)2(μ3-OAc)2(μ3-OMc)2(μ2-OMc)8(HOiPr)2(Cd4Ti2). Only hydrogen of the OH groups are shown. Selected bond lengths and angles: Ti1–Cd13.4499(9), Ti1–Cd2 3.4521(9), Cd1–Cd2 3.8904(8), Ti1–O1 1.698(2), Cd1–O12.262(2), Cd2–O1 2.267(2), Cd1–O2 2.260(2), Cd1′–O2 2.355(2),Cd1–O4 2.232(2), Cd2–O3 2.267(3), Cd2–O4 2.336(2), Cd2–O5 2.368(2),Ti1–O7 2.012(2), Ti1–O9 1.997(2), Ti1–O11 1.977(2), Ti1–O13 1.986(2),Ti1–O14 2.227(2), Cd1–O6 2.256(2), Cd1–O8 2.260(2), Cd2–O10 2.279(3),Cd2–O12 2.228(3) Å; Cd1–O1–Cd2 118.40(9), Cd1–O1–Ti1120.55(11), Cd2–O1–Ti1 120.36(11)°.
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fig04: Molecular structure ofCd4Ti2(μ3-O)2(μ3-OAc)2(μ3-OMc)2(μ2-OMc)8(HOiPr)2(Cd4Ti2). Only hydrogen of the OH groups are shown. Selected bond lengths and angles: Ti1–Cd13.4499(9), Ti1–Cd2 3.4521(9), Cd1–Cd2 3.8904(8), Ti1–O1 1.698(2), Cd1–O12.262(2), Cd2–O1 2.267(2), Cd1–O2 2.260(2), Cd1′–O2 2.355(2),Cd1–O4 2.232(2), Cd2–O3 2.267(3), Cd2–O4 2.336(2), Cd2–O5 2.368(2),Ti1–O7 2.012(2), Ti1–O9 1.997(2), Ti1–O11 1.977(2), Ti1–O13 1.986(2),Ti1–O14 2.227(2), Cd1–O6 2.256(2), Cd1–O8 2.260(2), Cd2–O10 2.279(3),Cd2–O12 2.228(3) Å; Cd1–O1–Cd2 118.40(9), Cd1–O1–Ti1120.55(11), Cd2–O1–Ti1 120.36(11)°.
Mentions: Reaction of Cd(OAc)2 and an equimolar proportion ofTi(OiPr)4 with a tenfold excess amount of methacrylic acid resulted incentrosymmetricCd4Ti2O2(OAc)2(OMc)10(HOiPr)2(Cd4Ti2, Figure4). The structure of this cluster can againbe related to that of Ti6, but there are more profound changes. (i) In contrast to the structuresdiscussed before, the four Ti atoms in the center are replaced by Cd atoms, (ii) acetate groups[originating from the Cd(OAc)2 precursor] were incorporated in thestructure, (iii) two Cd atoms are bridged across the Cd4O4 ring, and (iv) thestructure contains no μ2-oxygen atoms, only the μ3-O units areretained.

Bottom Line: 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.

View Article: PubMed Central - PubMed

Affiliation: Institute of Materials Chemistry, Vienna University of Technology Getreidemarkt 9, 1060 Vienna, Austria.

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.

No MeSH data available.