1、什么是信息，信息处理，信息技术。 2、什么是微电子技术，它的作用和意义。 3、通信技术的分类和通信技术的发展前景。 4、计算机信息处理的特点。 5、数字技术基础

3.3 外消旋体的拆分 3.4 外消旋化与差向异构化 3.5 有机反应中的立体化学 Stereochemistry of Reactions

6.1 炔烃的结构 命名 和物理性质 Structure, Nomenclature, and Physical Properties of Alkyne

4.1 卤代烃的分类 结构和命名 Classification, Structure, and Nomenclature of Alkyl Halides 4.2 卤代烃的物理性质 Physical Properties of Alkyl Halides 4.3 卤代烃的化学性质 Chemical properties of Alkyl Halides

More environment-friendly methods Natural insect attractants — instead pesticide Less reactive compounds organic refrigerants and aerosol propellant — instead Freon (that destroy the Earth’s ozone layer) Cars with more efficient combustion engines — reduce the massive amount of automobile

Carbonyl compounds are a broad group of compounds that includes aldehydes, ketones,carboxylic acids, and esters

The reactivity of organometallic compounds increases with the percent ionic character of the carbon-metal bond. RLi and RMgX are of great importance in organic synthesis

A hydrocarbon whose molecules contain two double bonds is called an alkadiene(alkatriene for three double bonds); A hydrocarbon with two triple bonds is called an alkadiyne; A hydrocarbon with a double and triple bond is called an alkenyne

A UV-Vis spectrophotometer measures the amount of light absorbed at each wavelength of the UV and visible regions of the electromagnetic spectrum. λmax— the wavelength of maximum absorption

Conjugated unsaturated systems have a p orbital on a carbon adjacent to a double bond The p orbital can come from another double or triple bond The p orbital may be the empty p orbital of a carbocation or a p orbital with a single electron in it (a radical)