Chemistry (9813)

11個單元 · 27個課題

免費的Chemistry (9813)學習筆記，專為GCE A-Level - Higher 3 (H3)學生準備。下列每個章節都涵蓋一個重點主題，附有例題與練習提示，可在 thinka 應用程式中延伸練習。

Basic Principles of Spectroscopy

Molecular Stereochemistry

  • Stereochemical projection (including Newman projections)

    筆記

  • Conformational isomerism: energy barriers to rotation and interconversion

    筆記

  • Cis-trans isomerism, including E, Z nomenclature

    筆記

  • Enantiomerism and diastereomerism: R, S configuration, optical activity and optical purity

    筆記

  • Stereoisomerism in transition element complexes: cis-trans and enantiomerism in square planar and octahedral complexes

    筆記

Ultraviolet/visible Spectroscopy

  • Chromophores

    筆記

  • Molar absorptivity and the Beer–Lambert law

    筆記

Spectroscopic Techniques

  • Basic Principles of Spectroscopy: molecular orbital theory, the electromagnetic spectrum, quantisation of energy, energy level transitions

    筆記

  • Ultraviolet/visible Spectroscopy: electronic transitions, chromophores, molar absorptivity and the Beer-Lambert law

    筆記

  • Infrared (IR) Spectroscopy: molecular vibrations and characteristic IR absorptions

    筆記

  • Nuclear Magnetic Resonance (NMR) Spectroscopy: nuclear spin, chemical shift, peak area and proton counting, spin-spin splitting

    筆記

  • Mass Spectrometry: ionisation, fragmentation and interpretation of spectra

    筆記

Further Organic Mechanisms

  • The Hammond postulate: relationship between the transition state and the nearest stable species

    筆記

  • Nucleophilic substitution mechanism: nature of nucleophiles and leaving group, SN1, SN2

    筆記

  • Nucleophilic substitution kinetics: energy profile, rate law, orders of reaction, rate constants, stereochemistry, substituent effects

    筆記

  • Competition between SN1 and SN2

    筆記

  • Elimination mechanism: syn- and anti-elimination, stereoselectivity, regioselectivity, E1, E2

    筆記

  • Elimination kinetics: energy profile, rate law, regioselectivity

    筆記

  • E2/SN2 competition: substrate effects, base effects

    筆記

Infrared (IR) Spectroscopy

  • Characteristic IR absorptions

    筆記

Nuclear Magnetic Resonance (NMR) Spectroscopy

  • Chemical shift: δ scale, internal reference, electronegativity effects, anisotropic effects, hydrogen bonding

    筆記

  • Calculation of peak area and proton counting

    筆記

  • Spin-spin splitting

    筆記

Mass Spectrometry

  • Interpretation of spectra: molecular ion peak, isotopic abundance, fragment ions

    筆記

Basic Physical Organic Chemistry

    Nucleophilic Substitution

      Elimination

        立即實踐所學

        不要只看筆記，用無限量AI題目練習，即時獲得批改回饋。加入逾100,000名正在提升成績的學生。

        立即開始練習查看定價

        看完筆記了？用AI練習題測試自己

        立即練習此課題