Self-assembled Transition Metal Coordination Frameworks of ...

Chapter 5
The spectrum of 20 shows many peaks (Fig. 5.3). The peak at 438 is assigned
as [Mn(HL3)]+ (calc. 438) with matching isotropic distribution pattern. The small peak
at 913 may be of [Mn2(HL3)L3- 21i,o]* (calc. 912), which lacks isotropic pattern due
to very low intensity. The peak at 875 is assigned as [Mn2(HL3)L3]+ (calc. 875), 822
as [Mn(HL3)H2L3]+ (calc. 822), 651 as [Mn(H2L3)N3+quinoline-2-aldehyde
hydrazone]+ (calc. 651) and 609 as [Mn(HL3)+quinoline-2-aldehyde hydrazone]+
(calc. 609) with agreeing calculated isotropic pattems (Fig. 5.4).
.03 ‘°°
214
1N—~
704 fin?
we
=4_ - 651 sea ‘°'J sas 3°-_i eos mi
I 112
" - "7 23° 521 353 eao an
‘ 1;; 101 400 as 561 32‘ 1°67 us ' ‘
no
no
251 T52 rs: ea: 91:4 1200 1336
0 '—\ I zoo I |—‘l I I I |'I 400 I I I F_I I I coo
ll
I | I I I I | I 000 I I I I I I I-'F'r 1000 I I I I I | I I 1200
I I I I I I l"_T"I I I I I ||
Ihalfilp
Fig. 5.3. MALDI MS spectrum of dimanganese(II) complex 20.
as-2 an W :22
Isa I 612 511 825,2‘
5 are
"53 ‘ 024 lg.5
on
204
440 A 654 ”*~~——-~~~ 0
; _ _ | Mu 441 ___mm IC Ma.uICl'n.I'ge 8 i iiii W 62$ 8 M._“;Chu.a. i"”“ H an an
' hat‘. Mu:ICha1'ge Muslcrntgg
Fig. 5.4. Calculated agreeing isotropic distribution pattems of main peaks of 20.