Monday, December 29, 2008

5 11 1 27 transition metals

further topics
crystal fieled theory vestper
kinetic | rate of reaction 'chelate effect'
ligand: complexでmoleculeを構成する原子のように電荷を供給するatom|molecule
     H${}^+$  e${}^-$
Acid   Donor  Acceptor
Base  Acceptor Donner
C.N. Coordination Number.  In chemical symbol denoted as '[' ligands metal ']' #{+|-}
chelate (>1 site) <-> unidentate|monodentate (one site)
chelate <-> chelating ligands hexadentate
"chelate effect" entropically favorable
isomer <-> chelate
enantiomer = optical isomer
cis- on the same side chiral <-> chelate
d-count = goup# - oxidation#  Ex. Co in [Co(NH${}_3$)${}^6]${}^{3+}$  9 - 3 = 6 denoted d${}^6$
there's 5 d-orbitals


Lec 27 | MIT 5.111 Principles of Chemical Science, Fall 2005

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