1. Early studies on the peptide(protein) structure 1.1 The peptide(o=c-n-h) bond was found to be shorter than the C-N bond in a simple amine and atoms attached are coplanar. 1.1.1 This was revealed by X-ray diffraction studies of amino acids and of simple dipeptides and tripeptides

Chapter Objective: This chapter continues discussion of international capital markets with a discussion of the structure of the international bond market

Chapter F13 Power notes Bonds Payable and Investments in Bonds Learning Objectives 1. Financing Corporations 2. Characteristics of Bonds Payable 3. The Present-Value Concept and Bonds Payable 4. Accounting for Bonds Payable 5. Bond Sinking Funds 6. Bond Redemption 7 Investments in bonds 8. Corporation Balance Sheet 9. Financial Analysis and Interpretation

一. Structure of Alkene: 1. SP2 Hybridization: 2. The Properties of t-bond: o-bond

Prelog Strain: van der Waals interactions Baeyer Strain: bond angle distortion away from the ideal Pitzer Strain: torsional rotation about a sigma bond Baeyer Strain for selected ring sizes size of ring Ht of Combustion

Reactivity of C=C C—C Electrons in pi bond are loosely held Electrophiles are attracted to the pi electrons. · Carbocation intermediate forms. Nucleophile adds to the carbocation. · Net result is addition to the double bond

￾ 单电子近似的基本思想 ￾ 布洛赫定理 ￾ 金属自由电子的空晶格模型 ￾ 能带的一般性 ￾ 电子在外场中的运动 ￾ 金属、半导体、绝缘体能带的差别 一、基本内容 二、学习要点 熟练掌握以下内容 ￾ 布洛赫定理及能带的一般性 ￾ 能带的起因的物理解释，能带的一般特点 ￾ 固体导电性与能带结构的关系

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

一、什么是蛋白质? 蛋白质(pro t e in)是由许多氨基酸(amino acids)通过肽键(peptide bond)相连形成的高分子含氮化合物

哈佛大学：《有机过渡金属化学》英文教学资源（讲义）C-C Bond Formation