2001
DOI: 10.1002/1521-3757(20010917)113:18<3569::aid-ange3569>3.0.co;2-j
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A Polyhedral Aluminum Compound with an Al4C4N4 Framework

Abstract: Dedicated to Professor Philipp GütlichRecently the oligomeric and polyhedral compounds of aluminum containing Al À N and Al À C cores have attracted considerable interest following the preparation of a few threecoordinate iminoalanes [1] and the determination of the structures of carbaalanes. [2] Heteroatom-containing organoaluminum cage compounds [3] are potential precursors for various applications such as catalysts, reagents, and for chemical vapor deposition, [3a, 4, 5] as well as being of theoretical … Show more

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Cited by 12 publications
(20 citation statements)
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“…Such dynamic behavior involving tBu groups at variable temperatures has been previously observed in a solution of a polyhedron aluminum compound with an Al 4 C 4 N 4 framework. 12 The resonances of the 31 P{ 1 H} NMR (CD 3 CN, 23 1C) spectrum are observed at +64.01 (s) for P(s 2 l 3 ) and +40.47 (d) ppm for P(s 4 l 5 ), and are comparable to those of the potassium salt 4 ( 31 P d = +50.65 ppm) 6 as well as of the palladium phosphinato in bimetallic complexes (Mn-Pd) ( 31 P d = +62.2-63.3 ppm for P(s 4 l 5 )). 13 During the oxidation of 4 the phosphorus center changed from being nucleophilic to electrophilic.…”
mentioning
confidence: 86%
“…Such dynamic behavior involving tBu groups at variable temperatures has been previously observed in a solution of a polyhedron aluminum compound with an Al 4 C 4 N 4 framework. 12 The resonances of the 31 P{ 1 H} NMR (CD 3 CN, 23 1C) spectrum are observed at +64.01 (s) for P(s 2 l 3 ) and +40.47 (d) ppm for P(s 4 l 5 ), and are comparable to those of the potassium salt 4 ( 31 P d = +50.65 ppm) 6 as well as of the palladium phosphinato in bimetallic complexes (Mn-Pd) ( 31 P d = +62.2-63.3 ppm for P(s 4 l 5 )). 13 During the oxidation of 4 the phosphorus center changed from being nucleophilic to electrophilic.…”
mentioning
confidence: 86%
“…The unusual results of the dynamic NMR experiment of 31 were discussed and may be theoretically attributed to the promotion of rotational disorder around the C-N bond of the terminal fragments. 52 The Al 4 C 4 N 4 core of 31 is unique and thus it could be considered as a fused carba-aminoalane. The exact mechanism for the formation of 31 is unknown, but probably an initial donor-acceptor intermediate is involved, where the isocyanide carbon coordinates to aluminium followed by hydrogen migration from aluminium to carbon to yield the CH 2 moiety.…”
Section: Hydroalumination Of the H-c᎐ ᎐ ᎐ C-r System By H 3 Alؒnme 3 ...mentioning
confidence: 99%
“…The exact mechanism for the formation of 31 is unknown, but probably an initial donor-acceptor intermediate is involved, where the isocyanide carbon coordinates to aluminium followed by hydrogen migration from aluminium to carbon to yield the CH 2 moiety. 52…”
Section: Hydroalumination Of the H-c᎐ ᎐ ᎐ C-r System By H 3 Alؒnme 3 ...mentioning
confidence: 99%
“…Solvents were dried according to standard methods and freshly distilled prior to use. Trimethyltin fluoride [28], AlH 3 ÁNMe 3 [29] and (t-BuNCH 2-AlH) 4 [30] were prepared as described in the literature. Other chemicals were purchased from Sigma-Aldrich and used as received.…”
Section: General Experimental Proceduresmentioning
confidence: 99%