Year: 2013-14
Name:
LEVEL 2
Group:
1. t-BUTYLAMINEBORANE
(i) Synthesis of tBuNH2BH3
Appearance
Yield
M pt
IR
Mark
/ 10
/ 15
/ 15
/ 10
Mark Comments
/ 10
/5
/5
/ 10
/ 15
/5
Structure of report and bench notes
Q1
Q2
Q3
Q3
Q4
Total Mark
Late penalty
Date
Signature
/ 100
2. FERROCENE
(i) Synthesis of ferrocene
Appearance
Yield
M pt
IR
NMR (purity)
Structure of report and bench notes
Q1 see above
Q2
Q3
Q4
Q5
Q6
Total Mark
Late penalty
Mark
/5
/ 10
/5
/5
/5
(ii) Synthesis of acetylferrocene
Appearance
Yield
M pt
IR
NMR (purity)
Mark Comments
/ 10
/5
/5
/ 10
/5
/5
Date
Signature
/ 100
1
Mark
/5
/ 10
/5
/5
/5
Year: 2013-14
Name:
LEVEL 2
Group:
3. MAGNETOCHEMISTRY
(i) Synthesis of violet and blue [CoCl2(py)2]
Appearance
Yield of violet isomer
(ii) Measurement of magnetic moments
Mark
/ 10 eff values (see below)
/ 10
eff, BM
Magnetic moments
Blue [CoCl2(py)2]
Violet [CoCl2(py)2]
Fe(C2O4)·2H2O
K4[Fe(CN)6]·3H2O
eff, BM
Na2[Fe(CN)5(NO)]·2H2O
K3[Fe(CN)6]
CoCl2·6H2O
[Co(en)3]Cl3
Mark
Comments
/ 10
/ 15
/5
/5
/ 10
/ 10
Structure of report and bench notes
Q1
Q2
Q3
Q4
Q5
Total Mark
Mark
/ 25
Late penalty
Date
Signature
/ 100
4. RESOLUTION OF A RACEMIC MIXTURE
(i) Synthesis of d-[Co(en)3]Cl(dtartrate)
Appearance
Yield
(iii) Synthesis of l-[Co(en)3]I3·H2O
Appearance
Yield
Mark
(ii) Synthesis of d-[Co(en)3]I3·H2O
Mark
/5
/5
Mark
/5
/5
Appearance
Yield
(iv) Measurement of optical rotations
]D values (see below)
/5
/5
Mark
/ 30
]D, deg.dm–1.cm3.g–1
Optical rotations
Na(d-tartrate)
d-[Co(en)3]I3·H2O
l-[Co(en)3]I3·H2O
Mark
Comments
/ 10
Structure of report and bench notes
Q1 and Q2 see above
Q3
Q4
Q5
Total Mark
Late penalty
]D, rad.m2.kg–1
/ 10
/ 10
/ 10
Date
Signature
/ 100
2
Year: 2013-14
Name:
LEVEL 2
Group:
5. COORDINATION CHEMISTRY OF VANADIUM
(i) Synthesis of [VO(acac)2]
Appearance
Yield, recrystallised
(iii) UV/vis spectra
Appearance
Mark (ii) Synthesis of [VO(acac)2(py)]
/ 5 Appearance
/ 10 Yield
Mark
/ 20
Mark
Comments
/ 10
/ 10
/ 10
/ 10
/ 10
Structure of report and bench notes
Q1
Q2
Q3
Q4
Total Mark
Late penalty
Date
Signature
/ 100
6. X-RAY DIFFRACTION
Mark
PART 1
Correct indexing of the powder pattern and unit
cell parameter determination
Q1
Q2
Q3
Q4
PART 2
Crystal structure refinements (5 marks VO(acac)2,
15 marks acetylferrocene)
Q1
Q2
Q3
Q4
Q5
Q6
Total Mark
Late penalty
Comments
/20
/ 10
/5
/ 10
/5
/20
/5
/5
/5
/5
/5
/5
Date
Signature
/ 100
3
Mark
/5
/ 10
Year: 2013-14
Name:
LEVEL 2
Group:
COMMENTS (Illness, absences, etc.)
4