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  2. Mechanochemistry - Wikipedia

    en.wikipedia.org/wiki/Mechanochemistry

    Mechanochemistry (or mechanical chemistry) is the initiation of chemical reactions by mechanical phenomena. Mechanochemistry thus represents a fourth way to cause chemical reactions, complementing thermal reactions in fluids, photochemistry, and electrochemistry. Conventionally mechanochemistry focuses on the transformations of covalent bonds ...

  3. Mechanically interlocked molecular architectures - Wikipedia

    en.wikipedia.org/wiki/Mechanically_interlocked...

    The introduction of a mechanical bond alters the chemistry of the sub components of rotaxanes and catenanes. Steric hindrance of reactive functionalities is increased and the strength of non-covalent interactions between the components are altered.

  4. Molecular mechanics - Wikipedia

    en.wikipedia.org/wiki/Molecular_mechanics

    A force field is used to minimize the bond stretching energy of this ethane molecule.. Molecular mechanics uses classical mechanics to model molecular systems. The Born–Oppenheimer approximation is assumed valid and the potential energy of all systems is calculated as a function of the nuclear coordinates using force fields.

  5. Mechanical engineering - Wikipedia

    en.wikipedia.org/wiki/Mechanical_engineering

    Mechanical engineering is the study of physical machines that may involve force and movement. ... including mechanical and chemical engineering. At its simplest, ...

  6. Chemical physics - Wikipedia

    en.wikipedia.org/wiki/Chemical_physics

    Chemical physics is a branch of physics that studies chemical processes from a physical point of view. It focuses on understanding the physical properties and ...

  7. Reaction mechanism - Wikipedia

    en.wikipedia.org/wiki/Reaction_mechanism

    In chemistry, a reaction mechanism is the step by step sequence of elementary reactions by which overall chemical reaction occurs. [1] A chemical mechanism is a theoretical conjecture that tries to describe in detail what takes place at each stage of an overall chemical reaction. The detailed steps of a reaction are not observable in most cases.

  8. Applications of quantum mechanics - Wikipedia

    en.wikipedia.org/wiki/Applications_of_quantum...

    The application of quantum mechanics to chemistry is known as quantum chemistry. Quantum mechanics can also provide quantitative insight into ionic and covalent bonding processes by explicitly showing which molecules are energetically favorable to which others and the magnitudes of the energies involved. [1]

  9. Characterization (materials science) - Wikipedia

    en.wikipedia.org/wiki/Characterization...

    Spectroscopy is a category of characterization techniques which use a range of principles to reveal the chemical composition, composition variation, crystal structure and photoelectric properties of materials. Some common examples of spectroscopy techniques include: