928797-95-9Relevant academic research and scientific papers
Structural and theoretical investigation of 2-iminoimidazolines - Carbene analogues of iminophosphoranes
Tamm, Matthias,Petrovic, Dejan,Randoll, Soeren,Beer, Stephan,Bannenberg, Thomas,Jones, Peter G.,Grunenberg, Joerg
, p. 523 - 530 (2007)
The preparation of 2-iminoimidazolines 3a-3f has been accomplished by the Staudinger reaction of the carbenes 1,3-di-tert-butylimidazolin-2-ylidene (1a), 1,3-diisopropyl-4,5-dimethylimidazolin-2-ylidene (1b), 1,3- diisopropylimidazolin-2-ylidene (1c), 1,3
A Tin Analogue of Carbenoid: Isolation and Reactivity of a Lithium Bis(imidazolin-2-imino)stannylenoid
Ochiai, Tatsumi,Franz, Daniel,Wu, Xiao-Nan,Irran, Elisabeth,Inoue, Shigeyoshi
, p. 6983 - 6987 (2016)
The lithium bis(imino)stannylenoid (NIPr)2Sn(Li)Cl (1; NIPr=bis(2,6-diisopropylphenyl)imidazolin-2-imino) was prepared by the reaction of LiNIPr with 0.5 equiv of SnCl2diox (diox=1,4-dioxane) and the ambiphilic character of the compound was demonstrated by investigations into its reactivity. Treatment of 1 with I2or MeI yielded the oxidative addition products (NIPr)2SnI2and (NIPr)2Sn(Me)I, respectively. In contrast, the reaction of 1 with one equivalent of Me3SiCl resulted in the formation of Me3SiNIPr and the chlorostannylene dimer [NIPrSnCl]2. Moreover, the substitution reaction of compound 1 with MeLi led to the formation of the methyl-substituted stannate (NIPr)2Sn(Li)Me. Ambiphilic tin(II): An elusive bis(imino)stannylenoid, a tin carbenoid analogue, was synthesized by using the highly basic imidazolin-2-imino group. Through investigations into the reactivity of the system and computational studies, the ambiphilic character of the stannylenoid was demonstrated.
Contrasting reactivities of silicon and germanium complexes supported by an N -heterocyclic guanidine ligand
Lui, Melanie W.,Merten, Christian,Ferguson, Michael J.,McDonald, Robert,Xu, Yunjie,Rivard, Eric
, p. 2040 - 2049 (2015)
We report the synthesis of an acyclic two-coordinate germylene supported by two bulky and electron donating N-heterocyclic guanidine [IPr=N]- ligands (IPr = [(HCNDipp)2C:]; Dipp = [2,6-iPr2C6H3/
An imido ligand significantly enhances the effective energy barrier of dysprosium(iii) single-molecule magnets
Liu, Bing-Cheng,Ge, Ning,Zhai, Yuan-Qi,Zhang, Tao,Ding, You-Song,Zheng, Yan-Zhen
, p. 9355 - 9358 (2019/08/08)
We report herein an imido ligand 1,3-bis(2,6-diisopropylphenyl) imidazolin-2-imine (ImDippNH) that can form a very short Dy-N bond (2.12 ?) with the dysprosium(iii) ion, which leads to a much larger effective energy barrier for magnetisation reversal (803 K) compared to the analogous alkoxide ligand (53 K). Moreover, we predict that a linear two-coordinate [Dy(ImDippN)2]+ complex may have an effective energy barrier larger than 4000 K.
Isolation of Phosphinoimino-2-imidazoline
Chong, Che Chang,Ganguly, Rakesh,Li, Yongxin,Kinjo, Rei
, p. 1264 - 1268 (2016/11/23)
The phosphinoimino-2-imidazoline 4 was synthesized by a salt elimination reaction between LiNIPr [NIPr = 1,3-bis(2,6-(diisopropylphenyl)imidazolin-2-ylidenamino)] and 2-chloro-1,3,2-diazaphospholene. DFT study revealed that the HOMO of 4 involves the lone pair orbitals on the P atom and the N atom at the exocyclic P–N bond. Compound 4 displays selectivity in coordinating to acids. Thus, the N atom at the exocyclic P–N bond coordinates to a hard acid (HCl) which eventually led to the cleavage of the P–N bond, while the central P atom forms a dative bond with a soft Lewis acid, BH3.
METAL-LIGAND COMPLEXES AND CATALYSTS
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, (2011/09/16)
The present invention generally relates to metal-ligand complexes, catalysts comprising or prepared from the metal-ligand complexes, processes of catalyzing olefin polymerization reactions with the catalysts to prepare polyolefins, polyolefins prepared th
METAL-LIGAND COMPLEXES AND CATALYSTS
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Page/Page column 83, (2011/09/19)
The present invention generally relates to metal-ligand complexes, catalysts comprising or prepared from the metal-ligand complexes, processes of catalyzing olefin polymerization reactions with the catalysts to prepare polyolefins, polyolefins prepared th
