Term
|
Definition
| composed of metal ions bonded with one or more ligands. |
|
|
Term
|
Definition
nonmetals that may be single
atoms, ions, or molecules that donate electrons to the metal. |
|
|
Term
|
Definition
| only one atom bonds to metal |
|
|
Term
|
Definition
| The simplest portion of the structure that is repeated |
|
|
Term
|
Definition
| many closely spaced MO’s of nearly continuous energy |
|
|
Term
|
Definition
| highest occupied band (HOMO) |
|
|
Term
|
Definition
|
|
Term
|
Definition
| Large energy gap between valence and conduction band, electrons cannot move through material |
|
|
Term
|
Definition
| Partly filled valence and conduction bands (most metals) so little energy required for electron movement |
|
|
Term
|
Definition
| electron vacancy that can also “move” in partially occupied bands |
|
|
Term
|
Definition
Full valence band, empty conductance band but close together, energy gap < 2 eV
Si, Ge are common pure substances that are semiconductors
At low temperature they are insulators
At higher temperature they are conductors
Opposite temperature effect to metals |
|
|
Term
|
Definition
sum of a series of numbers
representing the number of nearest neighbors and their
relative distance from a given ion |
|
|
Term
|
Definition
| (sheet or layer silicates) are a mineral group that includes clays and micas (layers of K+ ions between silicate and aluminate layers) |
|
|
Term
|
Definition
|
|
Term
|
Definition
| made of alpha supercage and sodalite b cages |
|
|
Term
|
Definition
|
|
Term
|
Definition
Based upon β-cages and 6-membered rings
Isostructural with diamond |
|
|
Term
| Most MOFs are not zeolitic |
|
Definition
| Typically they are not built from tetrahedra |
|
|
Term
|
Definition
lie at the heart of many
natural processes such as photosynthesis |
|
|
Term
| metalloporphyrin is also at the heart of haemoglobin |
|
Definition
Fe(porphyrin) side histidine other to O
coordinated one to histidine, O2 |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
used to describe dorbital
splitting |
|
|
Term
| Crystal Field Theory can be used to account for: |
|
Definition
| Colors of transition metal complexes and Magnetic properties of transition metal complexes |
|
|
Term
|
Definition
| “there cannot be unequal occupation of orbitals with identical energy” |
|
|
Term
|
Definition
An atom or group of atoms that absorbs light
(whether or not a color is produced). |
|
|
Term
|
Definition
The electronic transition from one energy state to another occurs so quickly that the
nuclei of the atoms involved are in effect stationary during the process. |
|
|
Term
|
Definition
| changes in spin multiplicity are forbidden |
|
|
Term
|
Definition
there must be a change in the parity
(symmetry) of the complex |
|
|
