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Incorporating Trimethylaluminium into the Structures of Alkali Metal (Li, Na, K, Cs) dihydropyridines
Zeitschrift für anorganische und allgemeine Chemie ( IF 1.1 ) Pub Date : 2022-12-09 , DOI: 10.1002/zaac.202200356
Robert E. Mulvey 1 , Shay P. Docherty , Sumanta Banerjee 2 , William Clegg 3 , Fiona J. Palin , Alan R. Kennedy , Stuart D. Robertson 2
Zeitschrift für anorganische und allgemeine Chemie ( IF 1.1 ) Pub Date : 2022-12-09 , DOI: 10.1002/zaac.202200356
Robert E. Mulvey 1 , Shay P. Docherty , Sumanta Banerjee 2 , William Clegg 3 , Fiona J. Palin , Alan R. Kennedy , Stuart D. Robertson 2
Affiliation
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Co-complexation of equimolar amounts of 1-alkali-metal-2-tertbutyldihydropyridines with AlMe3 in the presence of a polydentate N-donor ligand has delivered four crystallographically verified alkali-metal aluminates [donor⋅AM(μ-tBuDHP)AlMe3]n (1, AM=Li, donor=TMEDA, n=1; 2, AM=Na, donor=PMDETA, n=1; 3, AM=K, donor=PMDETA, n=2; 4, AM=Cs, donor=PMDETA, n=∞; TMEDA=N,N,N′,N′-tetramethylethylenediamine; PMDETA=N,N,N′,N′′,N′′-pentamethyldiethylenetriamine). While the monomeric complexes (1, 2) and the polymeric complex (4) are thermally stable, the dimeric complex (3) undergoes a disproportionation process yielding the known ion-separated homoanionic complex [K ⋅ (PMDETA)2]+ [AlMe4]− (3 a). Utilizing TMEDA as the N-donor resulted in the same disproportionation, but gave rise to two distinct solid-state aggregated forms of aluminate [K ⋅ (TMEDA)2]+ [AlMe4]−, namely monomeric (3 b) and polymeric (3 b′) polymorphs, in which the anionic moiety acts as a bidentate chelator or monodentate bridge respectively to the potassium cationic moieties.
中文翻译:
将三甲基铝掺入碱金属(Li、Na、K、Cs)二氢吡啶的结构中
在多齿N-供体配体存在下,等摩尔量的 1-碱金属-2-叔丁基二氢吡啶与 AlMe 3的共络合产生了四种经结晶学验证的碱金属铝酸盐 [donor⋅AM(μ- t BuDHP)AlMe 3 ] n ( 1 , AM=Li, donor=TMEDA, n=1; 2 , AM=Na, donor=PMDETA, n=1; 3 , AM=K, donor=PMDETA, n=2; 4 , AM= Cs, donor=PMDETA, n=∞; TMEDA= N , N , N' , N' -tetramethylethylenediamine; PMDETA= N , N , N', N'' , N'' -五甲基二亚乙基三胺)。虽然单体配合物 ( 1 , 2 ) 和聚合物配合物 ( 4 ) 是热稳定的,但二聚配合物 ( 3 ) 经历歧化过程,产生已知的离子分离均阴离子配合物 [K ⋅ (PMDETA) 2 ] + [AlMe 4 ] - ( 3 一个)。使用 TMEDA 作为N供体导致相同的歧化,但产生两种不同的固态聚集形式的铝酸盐 [K ⋅ (TMEDA) 2 ] + [AlMe 4 ]-,即单体(3 b)和聚合(3 b')多晶型物,其中阴离子部分分别作为钾阳离子部分的双齿螯合剂或单齿桥。
更新日期:2022-12-09
中文翻译:

将三甲基铝掺入碱金属(Li、Na、K、Cs)二氢吡啶的结构中
在多齿N-供体配体存在下,等摩尔量的 1-碱金属-2-叔丁基二氢吡啶与 AlMe 3的共络合产生了四种经结晶学验证的碱金属铝酸盐 [donor⋅AM(μ- t BuDHP)AlMe 3 ] n ( 1 , AM=Li, donor=TMEDA, n=1; 2 , AM=Na, donor=PMDETA, n=1; 3 , AM=K, donor=PMDETA, n=2; 4 , AM= Cs, donor=PMDETA, n=∞; TMEDA= N , N , N' , N' -tetramethylethylenediamine; PMDETA= N , N , N', N'' , N'' -五甲基二亚乙基三胺)。虽然单体配合物 ( 1 , 2 ) 和聚合物配合物 ( 4 ) 是热稳定的,但二聚配合物 ( 3 ) 经历歧化过程,产生已知的离子分离均阴离子配合物 [K ⋅ (PMDETA) 2 ] + [AlMe 4 ] - ( 3 一个)。使用 TMEDA 作为N供体导致相同的歧化,但产生两种不同的固态聚集形式的铝酸盐 [K ⋅ (TMEDA) 2 ] + [AlMe 4 ]-,即单体(3 b)和聚合(3 b')多晶型物,其中阴离子部分分别作为钾阳离子部分的双齿螯合剂或单齿桥。