Interactions | Reactions | Processes
Classified as: Molecular Shape Recognition Complexation
Molecular shape recognition complexation occurs when a small guest molecule (of distinct shape) fits into the molecular sized cavity or channel of larger host molecule.
Many inorganic, organic and bio-organic host-guest complexes are known. Such complexes are interesting because the chemical environment inside the cavity is usually very different form outside. Interesting chemistry is often observed. For more information look in the Chemogenesis webbook sections on Lewis acids and Lewis bases and the Lewis acid/base interaction matrix.
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KMnO4 |
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[MnO4]– |
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[H3O]+ |
+ |
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Bi3+ |
+ |
3 |
[NO3]– |
+ |
5 |
H2O |
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Bi(NO3)2 |
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K+ |
+ |
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DNA |
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Zinc finger protein |
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Zinc finger DNA complex |
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Enzyme |
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Substrate (for enzyme) |
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Enzyme/Substrate complex |
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CuSO4 |
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5 |
H2O |
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CuSO4.5H2O |
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KCl |
+ |
MgCl2 |
+ |
6 |
H2O |
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KCl.MgCl2 .6H2O |
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K2SO4 |
+ |
Al2(SO4)3 |
+ |
24 |
H2O |
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2 |
KAl(SO4)2 .12H2O |
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Cytosine C |
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Guanine G |
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C≡G |
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Thymine T |
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Adenine A |
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T=A |
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© Mark R. Leach 1999 –
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