L27to36Bio

L27to36Bio - MIT OpenCourseWare http:/ocw.mit.edu 5.111...

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MIT OpenCourseWare http://ocw.mit.edu 5.111 Principles of Chemical Science Fall 2008 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms .
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5.111 Principles of Chemical Science Selected biology-related questions from problem sets for lectures 27-36 Transition Metals A . Cisplatinum [Pt(NH 3 ) 2 Cl 2 ] is a potent anticancer drug. (a) Draw the structure of this square planar molecule and the structure of its isomer transplatinum. ( b) What are the angles for a square planar molecule? (c) What is the CN? (d) Draw the crystal field energy-level diagram for cisplatinum, labeling the d-orbitals. (e) Predict whether cisplatinum is diamagnetic or paramagnetic? Explain your answer. B. Octahedral platinum(IV) complexes are used in protein crystallography to help determine three-dimensional protein structures. If the octahedral crystal field splitting energy ( Δ o ) is large for these complexes, (a)
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L27to36Bio - MIT OpenCourseWare http:/ocw.mit.edu 5.111...

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