查询词典 donor

In Chapter 2, the study on PET of the donor/acceptor pair via the rigid bridge, heptacyclo [6.6.0.02,6.03,13.04,11.05,9.010,14] tetradecane, is presented. By using the GMH method, the electronic coupling matrix elements between ground and excited states are predicted.

在第二章，我们研究了对七环十四烷连接儿茶酚和二氰基乙烯构建的分子内光诱导电子转移体系；考察了吸收光谱随溶剂极性变化的影响，预测了该体系的电子转移机理，并利用广义的Mulliken-Hush公式，计算了基态和各激发态之间的电子转移耦合矩阵元。

Tetralin, a hydrogen donor, exhibited good function of removing coke from spent hydro-processing catalyst.

一旦除去一定量的焦炭或金属化合物沉积物，失活催化剂的加氢脱硫活性将得到恢复。

Test results showed that tetralin was an appropriate hydrogen donor. By adding tetralin, the activation energy of the hydrogen transfer reactions were...

结果表明，四氢萘为合适的供氢组分，四氢萘通过降低反应活化能来强化氢转移反应；提高反应温度有利于提高四氢萘的供氢能力，但温度高于450℃后，四氢萘裂化倾向加大；催化剂的酸性对供氢组分的选择性供氢有影响，合适的酸量和酸密度有助于促进供氢组分参加的氢转移反应。

Catalytic cracking ; gasoline stock ; hydrogen donor solvent ; hydrogen transfer ; tetralin

催化裂化；汽油料；供氢溶剂；氢转移；四氢化萘

Bone defects and nonunion are common problem in orthopaedic surgery, the management for these conditions is traditionarily autogenous bone graft, which is defect on the aspect of local complication and limited by bone volume in donor sites.

骨缺损、骨折不愈合是骨科临床常见的问题，传统的治疗方法是自体骨移植，但存在局部并发症和供骨数量不足等缺陷。

Renal function of recipient was normal after 3 days. Conclusion: Transperitoneal laparoscopic nephrectomy in live-donor is a safe and effective procedure, which provides kidney with satisfactory blood vessels and ureter for graft.

经腹腔路径腹腔镜活体供肾切除术可以满意解剖肾血管和保留足够长的输尿管，而且安全、有效，创伤小、恢复快、痛苦少，供者易于接受。

The crystal consists of two similar but independent molecules in the asymmetric unit and the Ce ion coordinated toward ten donor atoms, six of which belong to the nitrogen atoms of two tridentate ligands and four oxygen atoms from two bidentate picrates.

晶体中一个不对称单元内有两个结晶学上独立的分子，这两个分子的构型基本相同，中心Ce3＋均与两个三齿配位的配体及两个双齿配位的苦味酸根配位，配位数为10。

Both iron atoms of the binuclear unit are bridged by one oxy atom and two acetate groups. Each iron atom is also bound to facially - coordinating tridentate IDB ligand with the aliphatic nitrogen donor situated trans to theμ- oxy atom. Each iron centers is in a distorted octahedral symmetry.

每个双核单元的两个铁原子均通过一个氧原子和两个醋酸根连接，每个铁原子同时还与位于桥氧原子对位的三齿配体IDB重脂肪链上氮原子相结合，每个铁中心为一变形八面体结构。

Photochemical properties of 8 are similar to the analog involving the trimethyl TTF donor unit8 and will be discussed in detail elsewhere.

光化学 特性8类似模拟涉及三和信托基金捐助者将unit8 详细讨论了其他地方。

All of above experimental phenomena cann't be explained unifiedly by Weller's theory, that is it cann't be explained unifiedly by only considering ionization potentials and electron affinities of the donor and acceptor in formation of exciplex.

所有这些实验现象不能用Weller的电子转移模型来统一解释，即不能用形成激基复合物的两个分子的电离能和电子亲合力的大小来统一解释。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。