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Coordination Compound > VBT ,isomerism and CFT > Flashcards

VBT ,isomerism and CFT Flashcards

1
Q

Magnetic moment

A

√n(n+2)

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2
Q

nd

A

outer orbital complex, high spin, spin free

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3
Q

(n-1)d

A

inner orbital complex, spin paired, low spin

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4
Q

spectrochemical series

A

I- < Br-1 < SCN-1 < Cl-1 < S2- < NO3- < F- < OH- < C2O4 2- < H20 < NCS- < EDTA 4- < CH3CN < py < NH3 < en < dipy < NO2- < CN- < CO

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5
Q

d2sp3

A

sq. planner : dx2-y2 + s + px + py

linnear : pz + dz2

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6
Q

dsp3

A

sp2 : triangular

dz2 + pz : linear

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7
Q

d3sp3

A

pentagonal planner: s + px + py + dxy + dx2-y2

linear : pz + dz2

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8
Q

[Cu(NH3)4]2+

A

dsp2(square planner)

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9
Q

[Co(NH3)6]2+

A

d2sp3

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10
Q

[Co(C2O4)3]3- and [Co(H2O)6]3+

A

d2sp3 strong field ligand

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11
Q

4d and 5d series

A

all ligand act as strong field ligand

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12
Q

Pt2+ , Pd2+ , Au3+

A

square planner complex (inner)

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13
Q

structural isomerism

A
  1. linkage
  2. ionisation
  3. hydrate
  4. coordination
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14
Q

[Ma3b3]

A

meridinal and facial

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15
Q

90 and 180

A

cis and trans

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16
Q

neutral ligand are treated (CFT)

A

as point dipoles

17
Q

force b/w ligand and central atom (CFT)

A

elctrostatic

18
Q

point of split (CFT)

A

baricenter

19
Q

octahedral dxy dyz dzx (CFT)

A

-0.4

20
Q

octahedral dx2-y2 ,dz2 (CFT)

A

+0.6

21
Q

crystal field splitting

A
  1. strength of ligand
  2. oxidation state
  3. 3d < 4d < 5d
  4. geometry (sq. planer > octahedral > tetrahedral)
22
Q

CFSE (octahedral)

A

nt2g(-0.4) + neg(+0.6) + n(pi)

23
Q

tetrahedral (CFT) t2g

A

+0.4

24
Q

tetrahedral (CFT) eg

A

-0.6

25
Q

CFSE for tetrahedral

A

t2g(+0.4) + eg(-0.6) + n(pi)

26
Q

square planner order (CFT)

A

dx2-y2 > dxy > dz2 > dzx = dyz

27
Q

delta t, s , o (CFT)

A

delta s * 3/4 = delta o = delta t * 9/4

28
Q

embreld and ruby

A

e: green - Cr3+
r: red - Cr3+

29
Q

d0 colourless

A

Sc3+ , Ti4+

30
Q

d10 colourless

A

Zn2+ , Cu+

31
Q

Example of compounds having colour due to ligand metal charge transfer

A

KMnO4 (deep pink)
K2Cr2O7 (orange)
CrO2Cl2(orange)

32
Q

HOMO - LUMO transition is the reason for colour in

A

Halogen

33
Q

Reason for colour is

A
  1. d-d transition
  2. HOMO-LUMO transition
  3. ligand metal charge transfer
34
Q

stability of coordination compound

A
  1. strength of ligand
  2. charge density on central atom
  3. chelation
35
Q

complimentary colours (CFT)

A

V - Y
B - O
G - R

Coordination Compound (3 decks)

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