Darly Bursch and co-workers (Karn, J., Busch, D., Nature 1966, 211, 160) synthesized a Ni(lI)-aminopyridine complex using a metal-template condensation reaction shown below. While compound C is the target compound, other Ni complexes can be produced as intermediates of the reaction. н он H2N H2N- Ni(CIO4)2 'N Ni2* HN 2 CIO4 `N Ni²* HN 2 CIO, `N Ni2* HN 2 CIO, N + HN H2O-ELOH reflux H2N. N. H H A B What SPECIFIC spectral features in IR and MS do you expect to see in order to determine if the reaction is COMPLETE?

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Darly Bursch and co-workers (Karn, J., Busch, D., Nature 1966, 211, 160) synthesized a Ni(II)-aminopyridine complex using a metal-template
condensation reaction shown below. While compound C is the target compound, other Ni complexes can be produced as intermediates of the
reaction.
H
н он
H
H2N
H2N-
Ni(CIO4)2
+
HN
'N Ni²* HN´ 2 CIO4
'N Ni2* HN
2 CIO,
`N Ni2* HN
2 CIO4
H2O-ELOH
reflux
H2N.
N.
N.
H
H
A
B
What SPECIFIC spectral features in IR and MS do you expect to see in order to determine if the reaction is COMPLETE?
SAMPLE ANSWER:
-1
cm
In IR: (1) Presence of OH stretch at
(2) Absence of C=C band at
cm 1
In MS: m/z = 250 and 157
Transcribed Image Text:Darly Bursch and co-workers (Karn, J., Busch, D., Nature 1966, 211, 160) synthesized a Ni(II)-aminopyridine complex using a metal-template condensation reaction shown below. While compound C is the target compound, other Ni complexes can be produced as intermediates of the reaction. H н он H H2N H2N- Ni(CIO4)2 + HN 'N Ni²* HN´ 2 CIO4 'N Ni2* HN 2 CIO, `N Ni2* HN 2 CIO4 H2O-ELOH reflux H2N. N. N. H H A B What SPECIFIC spectral features in IR and MS do you expect to see in order to determine if the reaction is COMPLETE? SAMPLE ANSWER: -1 cm In IR: (1) Presence of OH stretch at (2) Absence of C=C band at cm 1 In MS: m/z = 250 and 157
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