已经对一系列具有叔取代胺的配体的四配位铍(II)配合物的结构进行了计算建模,并使用6-311 ++的轨距包括原子轨道(GIAO)方法确定了其9 Be磁屏蔽值g(2d,p)级别。与极性质子溶剂中的实验值相比,在计算出的9 Be NMR化学位移之间观察到良好的相关性,极性质子溶剂中记录的值则较小。对许多替代复杂结构进行了建模,从而使实验与计算相比有了改进9NMR化学位移表明,在某些情况下,铍原子没有完全包封。几个合成的复合物产生了意想不到的荧光,并检查与所述电子跃迁相关联的所述计算出的分子轨道图表表明,在某些构象锁定赋予刚性来II协调跨越相邻的对齐的芳环允许离域桥接通过成为II。
Electrospray Ionisation Mass Spectrometric (ESI MS) Screening and Characterisation of Beryllium Complexes with Potentially Encapsulating Aminopolycarboxylate and Related Ligands
作者:Onyekachi Raymond、William Henderson、Penelope J. Brothers、Paul G. Plieger
DOI:10.1002/ejic.201701435
日期:2018.3.7
A fundamental issue in beryllium research is the search for suitable chelating ligands for environmental and biomedical application. In this paper, the speciation of beryllium ions with several multidentate aminopolycarboxylic acids, which are well‐known commercial and biomedical chelating agents, has been investigated using electrospray ionisation mass spectrometry (ESI MS). Stoichiometric information
Short,J.H.; Ours,C.W., Journal of Heterocyclic Chemistry, 1975, vol. 12, p. 869 - 876
作者:Short,J.H.、Ours,C.W.
DOI:——
日期:——
Wilson, J. Gerald, Australian Journal of Chemistry, 1990, vol. 43, # 7, p. 1283 - 1289
作者:Wilson, J. Gerald
DOI:——
日期:——
SHORT J. H.; OURS C. W., J. HETEROCYCL. CHEM. <JHTC-AD>, 1975, 12, NO 5, 869-876
作者:SHORT J. H.、 OURS C. W.
DOI:——
日期:——
Encapsulation of the Be<sup>II</sup> Cation: Spectroscopic and Computational Study
作者:Karl J. Shaffer、Ross J. Davidson、Anthony K. Burrell、T. Mark McCleskey、Paul G. Plieger
DOI:10.1021/ic302770t
日期:2013.4.1
values in polar protic solvents, less so for the values recorded in polaraproticsolvents. A number of alternative complex structures were modeled, resulting in an improvement in experimental versus computational 9Be NMR chemical shifts, suggesting that in some cases full encapsulation on the beryllium atom was not occurring. Several of the synthesized complexes gave rise to unexpected fluorescence
已经对一系列具有叔取代胺的配体的四配位铍(II)配合物的结构进行了计算建模,并使用6-311 ++的轨距包括原子轨道(GIAO)方法确定了其9 Be磁屏蔽值g(2d,p)级别。与极性质子溶剂中的实验值相比,在计算出的9 Be NMR化学位移之间观察到良好的相关性,极性质子溶剂中记录的值则较小。对许多替代复杂结构进行了建模,从而使实验与计算相比有了改进9NMR化学位移表明,在某些情况下,铍原子没有完全包封。几个合成的复合物产生了意想不到的荧光,并检查与所述电子跃迁相关联的所述计算出的分子轨道图表表明,在某些构象锁定赋予刚性来II协调跨越相邻的对齐的芳环允许离域桥接通过成为II。