ligands and coordination

Question 1

are transition metals lewis acids or bases?

Answer 1

lewis acids, they will easily accept a lone pair of electrons from a lewis base

Question 2

what is a coordination complex

Answer 2

a central d-block atom/ion bonded to molecules or anions. (called ligands)

Question 3

mono dentate ligands coordinate to metals via ….

Answer 3

one atom only

Question 4

the bond is a ____ bond with both electrons coming from the ______

Answer 4

dative,

ligand (lone pair)

Question 5

polydentate ligands form a _____

Answer 5

chelate ring

Question 6

ligands with more than one possible mode of coordination are _____

Answer 6

ambidentate

Question 7

kappa notation is used to …

Answer 7

describe which atom of an ambidentate ligand is binding to the metal centre.

Question 8

the more chelate rings the ____ stable the compound

Answer 8

more stable

Question 9

the d-orbitals ____ contribute to the shape of the metal complex

Answer 9

do not

Question 10

ML3 adopts a ______ geometry

Answer 10

trigonal planar

Question 11

ML4 adopts a _______ geometry

Answer 11

tetrahedral or square planar (more rare)

Question 12

ML5 adopts a _____ geometry

Answer 12

trigonal bipyramidal or square pyramidal

Question 13

ML6 adopts a _____ geometry

Answer 13

octahedral or trigonal prismatic (veyr rare)

Question 14

the metal OS =

Answer 14

complex charge - ligand charge