Synthesis and Functionalization of Molecular Building Blocks
for Metallophosphates and -silicates

D 2002

Synthesis and Functionalization of Molecular Building Blocks for Metallophosphates and -silicates

PINKAS, Jiří; Zuzana BRLEJOVÁ; Jiří LÖBL; Jan KRATOCHVÍL; Herbert W. ROESKY et al.

Základní údaje

Originální název

Synthesis and Functionalization of Molecular Building Blocks for Metallophosphates and -silicates

Autoři

PINKAS, Jiří; Zuzana BRLEJOVÁ; Jiří LÖBL; Jan KRATOCHVÍL a Herbert W. ROESKY

Vydání

1. vyd. San Feliu de Guixols, Spain, The Inorganic Side of Molecular Architecture - D3, od s. 3-3, 1 s. 2002

Nakladatel

European Science Foundation

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

10402 Inorganic and nuclear chemistry

Stát vydavatele

Španělsko

Utajení

není předmětem státního či obchodního tajemství

Kód RIV

RIV/00216224:14310/02:00006345

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

molecular phosphonates; silicates; cubic molecules; nonhydrolytic sol-gel

Štítky

cubic molecules, molecular phosphonates, nonhydrolytic sol-gel, silicates

Změněno: 31. 5. 2009 22:21, prof. RNDr. Jiří Pinkas, Ph.D.

Anotace

V originále

To gain an insight into possible cage/spacer combinations, we selected compounds of the cubic D4R type, [2,6-(i-Pr)2C6H3(Me3Si)NSi(O)3Ti(O-i-Pr)]4 (1), [Me2NAl(O)3P-t-Bu]4 (2), and [XAl(O)3PR]4 (3, X = Me, i-Bu, R = t-Bu, c-Hex), and studied the reactivity of their amido, alkoxo, and alkyl substituents with a series of protic reagents. Alcohols, silanols, phenols, and acids with different acidity and steric bulkiness were employed. While the dimethylamido groups in 2 are easily replaced, the bulky and less basic aryl(trimethylsilyl)amido groups in 1 resist substitution. Instead, the alkoxy groups in 1 are exchanged or the whole framework is destroyed in the reactions with strongly acidic reagents. A new model compound for the structural moiety P(OSi)1(OAl)3 found in silicoaluminophosphates (SAPO) was prepared by a dealkysilylation reaction of alumazene [2,6-(i-Pr)2C6H3NAlMe]3 with tris(trimethylsilyl)ester of phosphoric acid. The resulting (MeAl)[2,6-(i-Pr)2C6H3N]3{Al[OP(OSiMe3)3]}2(O3POSiMe3) (4) contains a heteroadamantane core and was characterized by analytical and spectroscopic methods and its molecular structure was established by a single crystal X-ray diffraction experiment. This new aluminophosphate could serve as the starting point for developing other structural units as it contains reactive groups.

Návaznosti

GA203/01/1533, projekt VaV

Název: Nové bezvodé metody přípravy fosfátových, silikátových, hybridních a oxidických materiálů

Investor: Grantová agentura ČR, Nové bezvodé metody přípravy fosfátových, silikátových, hybridních a oxidických materiálů

Citovat

PINKAS, Jiří; Zuzana BRLEJOVÁ; Jiří LÖBL; Jan KRATOCHVÍL a Herbert W. ROESKY. Synthesis and Functionalization of Molecular Building Blocks for Metallophosphates and -silicates. In The Inorganic Side of Molecular Architecture - D3. 1. vyd. San Feliu de Guixols, Spain: European Science Foundation, 2002, s. 3-3.

@inproceedings{405049,
   author = {Pinkas, Jiří and Brlejová, Zuzana and Löbl, Jiří and Kratochvíl, Jan and Roesky, Herbert W.},
   address = {San Feliu de Guixols, Spain},
   booktitle = {The Inorganic Side of Molecular Architecture - D3},
   edition = {1.},
   keywords = {molecular phosphonates; silicates; cubic molecules; nonhydrolytic sol-gel},
   language = {eng},
   location = {San Feliu de Guixols, Spain},
   pages = {3-3},
   publisher = {European Science Foundation},
   title = {Synthesis and Functionalization of Molecular Building Blocks for Metallophosphates and -silicates},
   year = {2002}
}

TY  - CONF
ID  - 405049
AU  - Pinkas, Jiří - Brlejová, Zuzana - Löbl, Jiří - Kratochvíl, Jan - Roesky, Herbert W.
PY  - 2002
TI  - Synthesis and Functionalization of Molecular Building Blocks for Metallophosphates and -silicates
PB  - European Science Foundation
CY  - San Feliu de Guixols, Spain
KW  - molecular phosphonates
KW  - silicates
KW  - cubic molecules
KW  - nonhydrolytic sol-gel
N2  - To gain an insight into possible cage/spacer combinations, we selected compounds of the cubic D4R type, [2,6-(i-Pr)2C6H3(Me3Si)NSi(O)3Ti(O-i-Pr)]4 (1), [Me2NAl(O)3P-t-Bu]4 (2), and [XAl(O)3PR]4 (3, X = Me, i-Bu, R = t-Bu, c-Hex), and studied the reactivity of their amido, alkoxo, and alkyl substituents with a series of protic reagents. Alcohols, silanols, phenols, and acids with different acidity and steric bulkiness were employed. While the dimethylamido groups in 2 are easily replaced, the bulky and less basic aryl(trimethylsilyl)amido groups in 1 resist substitution. Instead, the alkoxy groups in 1 are exchanged or the whole framework is destroyed in the reactions with strongly acidic reagents. A new model compound for the structural moiety P(OSi)1(OAl)3 found in silicoaluminophosphates (SAPO) was prepared by a dealkysilylation reaction of alumazene [2,6-(i-Pr)2C6H3NAlMe]3 with tris(trimethylsilyl)ester of phosphoric acid. The resulting (MeAl)[2,6-(i-Pr)2C6H3N]3{Al[OP(OSiMe3)3]}2(O3POSiMe3) (4) contains a heteroadamantane core and was characterized by analytical and spectroscopic methods and its molecular structure was established by a single crystal X-ray diffraction experiment. This new aluminophosphate could serve as the starting point for developing other structural units as it contains reactive groups.
ER  -

PINKAS, Jiří; Zuzana BRLEJOVÁ; Jiří LÖBL; Jan KRATOCHVÍL a Herbert W. ROESKY. Synthesis and Functionalization of Molecular Building Blocks for Metallophosphates and -silicates. In \textit{The Inorganic Side of Molecular Architecture - D3}. 1. vyd. San Feliu de Guixols, Spain: European Science Foundation, 2002, s.~3-3.

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