The Methylene-bridged Dialuminium Compound R2Al-CH2-AlR2 [R=CH(SiMe3)2] as an Effective Chelating Lewis Acid – Adducts with Halides, Perchlorate and Isopropylamide
The new methylene-bridged dialuminium compound Aryl Al-CH -AlAryl 1b was synthesised from Cl Al-CH -AlCl and four equivalents of LiAryl [Aryl=C (2,4,6-i-Pr) ]. A 1 : 2 stoichiometric ratio of the starting compounds afforded the dimeric aluminium halide (Aryl AlCl) (2) by dismutation. The coordinatio...
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| Veröffentlicht in: | Zeitschrift für Naturforschung. B, A journal of chemical sciences A journal of chemical sciences, 2012-10, Vol.67 (10), p.1081-1090 |
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| container_title | Zeitschrift für Naturforschung. B, A journal of chemical sciences |
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| creator | Uhl, Werner Rösener, Christian Stefaniak, Christina Choy, Tim Jasper-Peter, Beate Kösters, Jutta Layh, Marcus Hepp, Alexander |
| description | The new methylene-bridged dialuminium compound Aryl
Al-CH
-AlAryl
1b was synthesised from Cl
Al-CH
-AlCl
and four equivalents of LiAryl [Aryl=C
(2,4,6-i-Pr)
]. A 1 : 2 stoichiometric ratio of the starting compounds afforded the dimeric aluminium halide (Aryl
AlCl)
(2) by dismutation. The coordination behaviour of the related, but more easily available dialuminium compound R
Al-CH
-AlR
[R=CH(SiMe
] 1a was explored. It yields the Lewis acid base adducts [M][R
Al-CH
-AlR
(μ-X)] [3a, M=Li(TMEN)
, X=Cl; 3b, M=Li(TMEN)
, X=Br; 3c, M=K(18-crown-6), X=ClO
; 3d, M=Li(TMEN)
, X=NH(i-Pr)] with X residing in a bridging position between the two Al atoms as evident from NMR spectroscopy and X-ray crystallography (3b, 3c, 3d). Compound 3c is a unique example of a stable, in organic solvents soluble adduct that features a ClO
anion coordinated by an alkylaluminium compound via two of its oxygen atoms. |
| doi_str_mv | 10.5560/znb.2012-0145 |
| format | Article |
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Al-CH
-AlAryl
1b was synthesised from Cl
Al-CH
-AlCl
and four equivalents of LiAryl [Aryl=C
(2,4,6-i-Pr)
]. A 1 : 2 stoichiometric ratio of the starting compounds afforded the dimeric aluminium halide (Aryl
AlCl)
(2) by dismutation. The coordination behaviour of the related, but more easily available dialuminium compound R
Al-CH
-AlR
[R=CH(SiMe
] 1a was explored. It yields the Lewis acid base adducts [M][R
Al-CH
-AlR
(μ-X)] [3a, M=Li(TMEN)
, X=Cl; 3b, M=Li(TMEN)
, X=Br; 3c, M=K(18-crown-6), X=ClO
; 3d, M=Li(TMEN)
, X=NH(i-Pr)] with X residing in a bridging position between the two Al atoms as evident from NMR spectroscopy and X-ray crystallography (3b, 3c, 3d). Compound 3c is a unique example of a stable, in organic solvents soluble adduct that features a ClO
anion coordinated by an alkylaluminium compound via two of its oxygen atoms.</description><identifier>ISSN: 0932-0776</identifier><identifier>EISSN: 1865-7117</identifier><identifier>DOI: 10.5560/znb.2012-0145</identifier><language>eng</language><publisher>Verlag der Zeitschrift für Naturforschung</publisher><subject>Aluminium ; Anion Receptors ; Chelating Lewis Acids ; Lithium ; Perchlorate</subject><ispartof>Zeitschrift für Naturforschung. B, A journal of chemical sciences, 2012-10, Vol.67 (10), p.1081-1090</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Uhl, Werner</creatorcontrib><creatorcontrib>Rösener, Christian</creatorcontrib><creatorcontrib>Stefaniak, Christina</creatorcontrib><creatorcontrib>Choy, Tim</creatorcontrib><creatorcontrib>Jasper-Peter, Beate</creatorcontrib><creatorcontrib>Kösters, Jutta</creatorcontrib><creatorcontrib>Layh, Marcus</creatorcontrib><creatorcontrib>Hepp, Alexander</creatorcontrib><title>The Methylene-bridged Dialuminium Compound R2Al-CH2-AlR2 [R=CH(SiMe3)2] as an Effective Chelating Lewis Acid – Adducts with Halides, Perchlorate and Isopropylamide</title><title>Zeitschrift für Naturforschung. B, A journal of chemical sciences</title><description>The new methylene-bridged dialuminium compound Aryl
Al-CH
-AlAryl
1b was synthesised from Cl
Al-CH
-AlCl
and four equivalents of LiAryl [Aryl=C
(2,4,6-i-Pr)
]. A 1 : 2 stoichiometric ratio of the starting compounds afforded the dimeric aluminium halide (Aryl
AlCl)
(2) by dismutation. The coordination behaviour of the related, but more easily available dialuminium compound R
Al-CH
-AlR
[R=CH(SiMe
] 1a was explored. It yields the Lewis acid base adducts [M][R
Al-CH
-AlR
(μ-X)] [3a, M=Li(TMEN)
, X=Cl; 3b, M=Li(TMEN)
, X=Br; 3c, M=K(18-crown-6), X=ClO
; 3d, M=Li(TMEN)
, X=NH(i-Pr)] with X residing in a bridging position between the two Al atoms as evident from NMR spectroscopy and X-ray crystallography (3b, 3c, 3d). Compound 3c is a unique example of a stable, in organic solvents soluble adduct that features a ClO
anion coordinated by an alkylaluminium compound via two of its oxygen atoms.</description><subject>Aluminium</subject><subject>Anion Receptors</subject><subject>Chelating Lewis Acids</subject><subject>Lithium</subject><subject>Perchlorate</subject><issn>0932-0776</issn><issn>1865-7117</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNotkMtKw0AYhQdRsF6W7v-lgtGZSTKTLlyEeGmhotS6EgnTmX-akWlScrHUle_gM_hiPokpujqHw-Ec-Ag5YfQijgW9_CjnF5wyHlAWxTtkwBIRB5IxuUsGdBj2uZRinxw0zRulbBhFdEC-ZwXCPbbFxmOJwbx2ZoEGrp3y3dKVrltCVi1XVVcamPLUB9mIB6mfcniZXmWj0yd3j-EZfwXVgCrhxlrUrXtHyAr0qnXlAia4dg2k2hn4-fyC1JhOtw2sXVvASHlnsDmHR6x14atatdjvGBg31aquVhuvln3hiOxZ5Rs8_tdD8nx7M8tGweThbpylk6BjMmkDTbVAy4dSaM6l0jayQxHOUSuVGM2UskJaTmUSI5WhYCGLbUjnOpZCRXGC4SG5-ttdK99ibXBRd5ve5G9VV5f9c85ovmWd96zzLet8y1pIRhlNWPgLU_p2Pw</recordid><startdate>20121001</startdate><enddate>20121001</enddate><creator>Uhl, Werner</creator><creator>Rösener, Christian</creator><creator>Stefaniak, Christina</creator><creator>Choy, Tim</creator><creator>Jasper-Peter, Beate</creator><creator>Kösters, Jutta</creator><creator>Layh, Marcus</creator><creator>Hepp, Alexander</creator><general>Verlag der Zeitschrift für Naturforschung</general><scope/></search><sort><creationdate>20121001</creationdate><title>The Methylene-bridged Dialuminium Compound R2Al-CH2-AlR2 [R=CH(SiMe3)2] as an Effective Chelating Lewis Acid – Adducts with Halides, Perchlorate and Isopropylamide</title><author>Uhl, Werner ; Rösener, Christian ; Stefaniak, Christina ; Choy, Tim ; Jasper-Peter, Beate ; Kösters, Jutta ; Layh, Marcus ; Hepp, Alexander</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-u178t-c0c6ef2976c227acf4f963becaa8dc1aaf67f20785e07361315f30bc576a458e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Aluminium</topic><topic>Anion Receptors</topic><topic>Chelating Lewis Acids</topic><topic>Lithium</topic><topic>Perchlorate</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Uhl, Werner</creatorcontrib><creatorcontrib>Rösener, Christian</creatorcontrib><creatorcontrib>Stefaniak, Christina</creatorcontrib><creatorcontrib>Choy, Tim</creatorcontrib><creatorcontrib>Jasper-Peter, Beate</creatorcontrib><creatorcontrib>Kösters, Jutta</creatorcontrib><creatorcontrib>Layh, Marcus</creatorcontrib><creatorcontrib>Hepp, Alexander</creatorcontrib><jtitle>Zeitschrift für Naturforschung. B, A journal of chemical sciences</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Uhl, Werner</au><au>Rösener, Christian</au><au>Stefaniak, Christina</au><au>Choy, Tim</au><au>Jasper-Peter, Beate</au><au>Kösters, Jutta</au><au>Layh, Marcus</au><au>Hepp, Alexander</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Methylene-bridged Dialuminium Compound R2Al-CH2-AlR2 [R=CH(SiMe3)2] as an Effective Chelating Lewis Acid – Adducts with Halides, Perchlorate and Isopropylamide</atitle><jtitle>Zeitschrift für Naturforschung. B, A journal of chemical sciences</jtitle><date>2012-10-01</date><risdate>2012</risdate><volume>67</volume><issue>10</issue><spage>1081</spage><epage>1090</epage><pages>1081-1090</pages><issn>0932-0776</issn><eissn>1865-7117</eissn><abstract>The new methylene-bridged dialuminium compound Aryl
Al-CH
-AlAryl
1b was synthesised from Cl
Al-CH
-AlCl
and four equivalents of LiAryl [Aryl=C
(2,4,6-i-Pr)
]. A 1 : 2 stoichiometric ratio of the starting compounds afforded the dimeric aluminium halide (Aryl
AlCl)
(2) by dismutation. The coordination behaviour of the related, but more easily available dialuminium compound R
Al-CH
-AlR
[R=CH(SiMe
] 1a was explored. It yields the Lewis acid base adducts [M][R
Al-CH
-AlR
(μ-X)] [3a, M=Li(TMEN)
, X=Cl; 3b, M=Li(TMEN)
, X=Br; 3c, M=K(18-crown-6), X=ClO
; 3d, M=Li(TMEN)
, X=NH(i-Pr)] with X residing in a bridging position between the two Al atoms as evident from NMR spectroscopy and X-ray crystallography (3b, 3c, 3d). Compound 3c is a unique example of a stable, in organic solvents soluble adduct that features a ClO
anion coordinated by an alkylaluminium compound via two of its oxygen atoms.</abstract><pub>Verlag der Zeitschrift für Naturforschung</pub><doi>10.5560/znb.2012-0145</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0932-0776 |
| ispartof | Zeitschrift für Naturforschung. B, A journal of chemical sciences, 2012-10, Vol.67 (10), p.1081-1090 |
| issn | 0932-0776 1865-7117 |
| language | eng |
| recordid | cdi_walterdegruyter_journals_10_5560_znb_2012_014567101081 |
| source | Alma/SFX Local Collection |
| subjects | Aluminium Anion Receptors Chelating Lewis Acids Lithium Perchlorate |
| title | The Methylene-bridged Dialuminium Compound R2Al-CH2-AlR2 [R=CH(SiMe3)2] as an Effective Chelating Lewis Acid – Adducts with Halides, Perchlorate and Isopropylamide |
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