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Chem 1C > Chapter 19 > Flashcards

Chapter 19 Flashcards

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1
Q

Structural Isomers

A
  • diff bonds
  • diff formula
  • diff name
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2
Q

Linkage structural isomer

A

rearranged atoms with different bonds

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3
Q

Coordination structural isomer

A

switched atom in coordination cmpd and counter ion
ex) [MASB]C and [MASC]B

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4
Q

Stereoisomers

A
  • same bonds, diff orientations
  • same formula
  • diff name
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5
Q

Cis Geometric Stereoisomer

A

Same atoms on same side

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6
Q

Trans Geometric Stereoisomer

A

Same atoms on opp. side

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7
Q

Optical Stereoisomer

A

isomers are mirror images

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8
Q

Crystal field theory

A

considers d orbital orientations and covalent bonds to transition metals

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9
Q

eg plane (CFT)

A

electron density on axis

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10
Q

tg plane (CFT)

A

electron density between axes
- electron repulsions

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11
Q

Octahedral d-orbital diagram

A
  • 90 degree
  • ligands bond on axis
  • t2g on lower E level, eg on higher E level
  • refer to spectrochemical series for splitting E
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12
Q

Tetrahedral d-orbital diagram

A
  • 109.5 degree
  • ligands bond between axes
  • eg on lower E level, t2g on higher E level
  • small splitting energy
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13
Q

Square planar d-orbital diagram

A
  • bonds lie on axes
  • refer to physical flashcard for this
  • large splitting E
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14
Q

When splitting E is small, would electrons rather be paired or promoted?

A

promoted

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15
Q

When splitting E is large, would electrons rather be paired or promoted?

A

paired

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16
Q

High spin

A

more unpaired electrons

17
Q

Low spin

A

fewer unpaired electrons

18
Q

paramagnetic

A

some unpaired electrons

19
Q

diamagnetic

A

all electrons paired

20
Q

What do electrons have to do with color?

A
  • color emission results from electron transition between eg and t2g
  • electrons absorb photons for promotion
21
Q

Energy and Wavelength

A

E = hc / wavelength

Chem 1C (3 decks)

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