Stepwise metalation and metathesis reactions with a bulky aminocarbazole were conducted to prepare derivatives of tetravalent group 14 elements. These regarded as putatively suitable precursors for the formation doubly bonded 14/group 15 molecules such imino species. Starting from an N-aminocarbazole, deprotonation benzyl potassium formed corresponding solvent-free dimeric amide. Metathesis EBr...

An important challenge in the simulation of biomolecular systems is a quantitative description of the protonation and deprotonation process of amino acid residues. Despite the seeming simplicity of adding or removing a positively charged hydrogen nucleus, simulating the actual protonation/deprotonation process is inherently difficult. It requires both the explicit treatment of the excess proton...

The preservative qualities of individual ionic compounds impacting the infectivity T4 virions were elucidated. immersed in quasi-pure solutions prior to adsorption process, and plaque forming unit (pfu) values these measured following conventional method. In neutral solutions, minimum optimum concentrations corresponded with results obtained from multi-ionic media/buffers. acid alkali phages sh...

Kilogram-scale preparation of near infrared (NIR) carbon dots (C-dots) from o-phenylenediamine (o-PDA) with over 96% yield was reported in this study, and the estimated cost for each gram C-dots only $ 0.1. The formation process elucidated structural model also proposed which key intermediates were revealed. Excitingly, optical properties could be reversibly tuned via a facile protonation-depro...

The ortho-deprotonation of halide-substituted ferrocenes by treatment with lithium tetramethylpiperidide (LiTMP) has been investigated. Iodo-, bromo-, and chloro-substituted ferrocenes were easily deprotonated adjacent to the halide substituents. The synthetic applicability of this reaction was, however, limited by the fact that, depending on the temperature and the degree of halide substitutio...