Eletronic effectFluorescenceMechanochromismSteric hindrance effectSubstituentSix cyanovinyl phenothiazine derivatives bearing substituents with different sizes, and electron-donating and -withdrawing abilities were designed and synthesized. The effect of substituents on photophysical properties in solution and solid ...
With the advent of spin chemistry, magnetic field effect (MFE) on exciplex luminescence has emerged as an important domain of research. MFE is a diffusion controlled phenomenon and hence is solvent dielectric (epsiv) dependent. It maximizes at a particular epsiv (epsiv max) for a specific excipl...
A major challenge to the successful maturation of the germline forms of VRC01 antibodies toward their broadly neutralizing forms is the steric hindrance imposed by glycan molecules present on the conserved loop D 276 NLGS. As the present germline-targeting Env-based immunogens are designed to specif...
acceptor luminescence anisotropyisotropic mediaorientational relaxationAn orientation factor is calculated and the effect of steric hindrance in the donor and acceptor molecules is found for the efficiency of resonance dipole–dipole transfer of electronic energy. General expressions for the acceptor ...
While ZT3 shows large steric hindrance when three alkyl sulfoxide groups are introduced into the top and side branch chains, which causes head-to-head stacking. With the increase in number of alkyl sulfoxide groups, the steric hindrance of the molecule increases and the hole mobility decreases. ...
Then, to gauge the effect of steric hindrance on the luminescence properties, the phenyl group of complex 1 was substituted in the para position by a bulky tert-butyl group or an adamantyl moiety, affording complexes 2 and 3, respectively. The results of theoretical calculations indicated that ...