[物化] 光化反应
The photochemical reaction of manganese in seawater and its influencing factors were stu***d.
对海水中锰的光化学反应及其影响因素进行了研究。
The principle is based on the reversibility of a photochemical reaction accompanied by a change of coloration.
其原理是根据伴随着染色变化在光化反应中的可逆性。
Under the UV-light, effects of oxidants and metal ions on the photochemical reaction of congo red were stu***d by static method.
在紫外光作用下，采用静态方法研究了氧化剂和金属离子对刚果红光化学反应的影响。
Molybdenum(IV) chloride with high purity was prepared by the photochemical reaction of tetrachloroethylene and molybdenum(V) chloride in special reactor.
本文以************与五氯化钼为原料，在特制反应器内进行光化学反应，制得了高纯度四氯化钼。
Photo reaction of dinitropyrenes in simulated atmospheric conditions was stu***d. The photochemical reaction rate was found to be of the second order.
本文研究了*********芘异构体在模拟大气条件下的光化学反应，结果表明反应速率呈二级动力学关系。
Photochemical reaction mechanism of gold nanoparticles were also investigated here.
初步探讨了纳米光化学反应机理。
The decaying kinetics changed in different RCs, indicating that pheophytin replacement influenced the energy transduction and primary photochemical reaction in purple bacterial reaction centers.
说明去镁叶绿素置换影响了细菌反应中心内激发光能传递和原初光化学反应过程。
Except for considering the processes of transfer and diffusion of air pollution matter, the model covers the photochemical reaction effects as well.
模式除考虑污染物在大气中的输送、弥散过程外，还加入了光化学反应过程。
The results help us understand the photochemical reaction of organic pollutants in soil and provide us academic foundation for photochemical remediation of contaminated soil.
此研究结果有助于我们更好的了解土壤中有机污染物的光化学转化过程，并为今后利用光化学技术对有机污染土壤进行修复提供科学依据。
A high performance hybrid parallel algorithm for simulating photochemical reaction was developed by introducing the concept of two layers of parallel capacity.
为提高激光化学反应模拟效率，在半经典分子动力学模拟中引入混合并行技术和双层并行思想。
In order to understand the photochemical reaction mechanism of HPD fluorescence in sensitization therapy for cancer, the electronic spectrum of HPD is tentatively stu***d.
为了解血卟啉衍生物（HPD）荧光敏化诊治癌症的光动力学机制，本工作对HPD的电子光谱进行了初步的研究。
Under the action of ultraviolet light, specific photochemical reagent is made to produce photochemical reaction with AM/AMPS copolymer and thus converted into material with reaction activity.
该方法采用特定的光化学试剂，在紫外光作用下，通过与AM/AMPS共聚物发生光化学反应，使之转化为具有反应活性的材料。
Objective: To investigate the relationship between the monoamine neurotransmitters and cerebral-cardiac stroke after photochemical reaction.
目的：探讨单胺类递质在脑水肿及“脑-心卒中”的相互关系。
A ****** and mild method for the synthesis of fluorenol was stu***d. 9 bromofluorene (9 BF) can be selectively obtained by the photochemical reaction of fluorene with N bromosuccinimide (NBS).
研究了芴与N 溴代丁二酰亚胺（NBS）的光化学反应及其溴代产物的水解反应，提供了一种温和、简便的制备芴醇的方法。
The authors also stu***d the route of photochemical reaction using bicyclo(tricyclo) diterpene derivatives as material and ambergris type materials were obtained with a 16% total yield.
以二萜二环或三环衍生物为原料，通过光解、光敏氧化获得龙涎香气香料，总得率约16 % 。
Kinetic study of photochemical oxidation reaction of DMS in aqueous solution was performed.
实验研究水溶液中*********硫（DMS）的光化学氧化反应的动力学。
Active free radicals in the photochemical hydrogen abstraction reaction between benzophenone and aromatic amines have been stu***d systematically by combination of spin trapping reagents and ESR.
本文用自由基捕捉剂与ESR相结合的方法系统研究了各种取代苯胺与二苯酮光化夺氢反应中的活泼自由基。
Currently, the main treatment of PCP includes: biological method , fenton reaction photochemical method , electrodeposition, ozone treatment , ultrasonic, metallocene catalysts.
目前，对PCP的主要处理方法是：生物方法、芬顿试剂法、光化学、电化学、臭氧处理、超声波及金属催化氧化等处理方法。
The active radicals produced in the photochemical hydrogen-abstraction reaction between five Tatty amines and five nitrofluorenones have been stu***d by means of spin trapping -ESR technique .
本文用自旋捕捉技术与ESR方法研究了五种硝基芴酮与五种不同的伯、仲、叔脂肪胺的光化夺氢反应中的活泼自由基。
The formation of photochemical smog, the reaction mechanism, the harm to our humanity, the zoology and botany and the preventive measure are introduced in this paper.
本文介绍了光化学烟雾的形成机理，对人类、动植物等的危害并提出了预防措施。
The first type of kinetic models for the UV/H2O2 process is on the basis of reaction mechanism and known as chemical and photochemical reactions.
第一种类型的动力学模式为UV/H2O2过程的基础上，物理反应和已知的化学和光化学反应。
In a number of methods for their preparation, photochemical chlorination of pyridine with agitation of the gaseous reaction mixtures is an excellent method.
在2-*********的许多制备法中，带搅拌吡啶气态反应混合物的光化学氯化是一个极好的方法。
Furthermore, the main controlling factors to photochemical reactions, their effect on environment during the reactions and the reaction mechanisms of some matters are described.
另外，讨论了上述物质发生光化学反应的主控因素及其在反应过程中对周围环境的影响作用，并对部分物质的反应机理作了介绍。
Photochemical reaction engineering is a branch of chemical reaction engineering.
光化学反应工程是化学反应工程的一个分支。
The photochemical reaction and mechanism of chlorofluorocarbons and aromatic compounds in solid ice was introduced chiefly.
重点介绍了氟氯烃和芳香族化合物在固态冰相中的光化学反应和反应机理。
Then the mechanism of photochemical reaction and the possibility of applications are discussed.
在此基础上对光化学反应机理和应用前景进行了讨论。
|photoreaction;[物化]光化反应
光化学反应（Photochemical Reaction）是指物质吸收特定波长的光能（通常是紫外光或可见光）后，其分子中的电子被激发至高能态，从而引发或加速的化学反应。这类反应的本质是光能转化为化学能，其过程不依赖于温度，遵循光化学定律（如格罗特斯-德雷珀定律和斯塔克-爱因斯坦光化学当量定律）。以下是详细解释：
光吸收与电子激发
分子吸收光子后，电子从基态（S₀）跃迁至激发单重态（S₁）或三重态（T₁）。激发态分子能量升高，键角或键长改变，反应活性显著增强。
公式：
$$ text{A} + h u rightarrow text{A}^ $$ （A为基态分子，A为激发态分子，hν为光子能量）
初级与次级反应
: IUPAC Compendium of Chemical Terminology - Photochemistry Section
: Turro, N.J. et al. Principles of Molecular Photochemistry. University Science Books.
: ACS Publications: Journal of Physical Chemistry A & C (光催化专题)
（注：来源基于公认权威出版物，因未搜索到网页结果，此处引用标准教材与学术机构名称替代链接。）
光化学反应（photochemical reaction）是指由光能引发的化学反应，其核心机制是物质吸收光子后发生电子激发状态改变，从而触发化学键断裂或形成。以下是详细解释：
基本定义与机制
光化学反应是物质吸收特定波长光能后，分子中的电子跃迁至激发态，引发化学结构变化的过程。例如，适盐细菌利用光驱动质子泵合成ATP的过程就属于典型的光化学反应。
关键特征
相关术语扩展
示例与现象
如氯气（Cl₂）在光照下分解为氯原子，进而参与臭氧层破坏的链式反应，即属于光化学反应。
如需进一步了解具体反应类型或应用案例，可参考光化学领域的专业文献或教材。
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