Basic Organometallic Chemistry and Inorganic Reaction (CHMS4210)
BSc, Chemistry - CHMS
Semester: Resit
Level: 400
Year: 2018
REPUBLIC OF CAMEROON THE UNIVERSITY OF BAMENDA
PEACE - WORK – FATHERLAND P.O Box 39 Bambili
FACULTY OF SCIENCE Course Instructor: Prof. Agwara Moise
Ondoh
Department of Chemistry Course Code and: CHMS4210
Academic Year: 2017/2018 Course Title: Basic Organometallic
Date credit: 08 Sept 2018 chemistry
Value: 6 Time: 11:00- 14:00
SEMESTER: 2 Duration: 3 hours Hall: PBB08
Instructions: Answer All Questions.
Question 1
a) Which of the following orbital designation are wrong?
1s, lp, 7d, 9s, 2d, 3f
b) How many orbitals can have the following designations:
i) 5p ii) 4d iii) n=4 iv) 5s
c) Write the electronic configuration of:
i)
11
Na
+
ii)
5
B
-
iii)
24
Cr iv)
26
Fe
2+
d) Obtain the most stable term amongst:
i)
3
P,
5
D,
3
H,
1
H,
1
I,
1
G
ii)
1
P,
3
P,
3
F,
1
G
iii)
6
S,
5
P,
4
G,
1
I
Question 2
a) How many microstates can be derived from the following electronic configurations:
i) d
3
ii) p
3
iii) d
10
iv) p
1
v) d
6
b) What is the complete ground term symbol for:
i) d
2
ii) p
4
iii) d
9
iv) p
3
v) p
5
c) How would the following terms split in an octahedral environment:
i)
2
D ii)
3
P iii)
2
S iv)
3
F
d) Using vectorial addition, obtain and show the orbit-orbit interaction in a d
2
electronic configuration.
The following complex, [Ti(H
2
O)
6
]
3+
showed the band 20100cm
-1
i) write the electronic configuration of Ti in
complex ii) Draw the energy diagram for the system iii) Assign the emission transition iv) Determine ∆o and ∆q
Question 3
a) i) Define an organometallic compound.
ii) State the 18 electron rule
b) Classify metal carbonyls giving a suitable example for each case.
c) i) Using simple diagrams describe the bonding in metal carbonyls
ii) Identify the bonding modes of metal carbonyls
d) Give the scientific name for: i) V(Co)
6
ii) Fe(C
s
H
s
)
2
iii) Fe(CO)
s
e) Using the 18e rule give the stable structure of i) Mn
2
(CO)
10
ii) Fe(CO)
3
(C
8
H
g
) iii) Co(CO)
3
(C
2
H
2
)
f) i)Fe(CO)
s
was synthesized using nickel in powder form using excess of carbon monoxide 1.4g of
iron give 3.92 g. of Fe(CO)
s
. Calculate the percentage yield (Fe=56, C=12,0=16)
ii) Give two industrial/ environmental importance of organometallic chemistry
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