6. “unfavorable acceptor-acceptor”?这个我有些不确定因为一般来说不会有acceptor间的互相反应,但我会猜测它可能是在讨论双齿或多齿螯合物的形成或者是配体通过多中心桥接方式连接多个金属离子等复杂体系中的问题。或者也有可能是指的金属与不同接收器之间的不良相互作用?如果是后者的话可能与配合物稳定性有关。7...
在一般的氢键中,氢键供体(donor)与氢键受体(acceptor)之间的相互作用是稳定的。然而,当两个氢键供体之间存在太过紧密的空间,它们的电子云之间的排斥作用就会导致donordonor键的形成。 2.形成donordonor键的原因是什么? donordonor键的形成可以归因于以下两个主要原因: a.不合适的分子构型:当两个氢键供体之间的距离太...
Cho and SM have both hydrogen-bond donor and acceptor groups that together with the Cho flat and extended hydrophobic structure promote the tight packing of SM and Cho into the liquid-ordered arrangement [53]. Thus, SM and Cho, are relevant in determining lipid conformational order and packing...
Values of Ace, were determined from the Rehm-Weller equation2 which relates the free energy of the electron transfer to the half-wave oxidation potential of the donor, E I j 2 ( + ) , the half-wave reduction potential of the acceptor, E, /2 ( ) , the energy of the excited state ...
circRNAs are formed by backsplicing events that involve a downstream 3′ splice donor site joining an upstream 5′ splice acceptor site in the primary transcript.4, 5 The circular covalently bonded structure means that they do not have a 5′-to-3′ polarity or poly(A) tail, which endows ...
ATP-binding cassette subfamily C member 4 (ABCC4) encoding MRP4 protein is involved in pediatric acute lymphoblastic leukemia (ALL) drug resistance. The nonsynonymous single nucleotide polymorphism (SNP) rs2274407 (G912T; K304N) is located in the 3' splice acceptor site of exon 8 of ABCC4 ...