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Transition metals, like copper, are found in many types of biological molecules where it is common for metals to have deviations from ideal bond angles. Plastocyanin, a protein involved in electron transfer, contains a copper atom bonded to nitrogen or sulfur atoms found in amino acids. The bond angles range between 100° and 108°. What type of geometry best describes the sulfur center affected by the copper atom in plastocyanin?

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Answer:

Tetrahedral is the correct answer to this question.

Explanation:

Tetrahedral:-

  • The term used to classify molecules and polyatomic ions which have one atomic in the middle and four electrons in the edges of the tetrahedron.
  • Tetrahedral is a molecular shape that occurs when there are four bonds and thus no single pairs across the main atomic in the sample.
  • The atoms bound to the nitrogen carbon lie at the edges of the tetrahedron with 109.5 ° bends among themselves.

Examples of tetrahedral:-

The bond angle for both methane and ammonium is 109.4.