Self-assembled Transition Metal Coordination Frameworks of ...

Chapter 6
The compound 27 exhibits a well resolved characteristic peak centered at
1791.5 assigned as [Zn4(HL3)L33]+ (calc. 1791) agreeing well with calculated isotropic
distribution pattem. The base peak centered at 1578.4 corresponds to a dissociated
species [Zn4L3 31-quinoline-2-aldehyde hydrazone-H+]+ (calc. 1578) also agreeing well
with calculated isotropic distribution pattern. Both these simulations are given with
spectrum in Fig. 6.6. However two other peaks seen centered at 1811.5 and 1996.6 are
4.
unassigned, as the
= . 1578 isotropic
21500 1105 1791
distribution patterns are not
F
found match well.
if E ‘mg 1104
1 11:: E
fK
A 1570 ­
V 1700
1 ' “"'-‘ 4 A " 1501 15:2
T ' 1 1 v- 1514 15$ ., g 11'? 1"‘ 17'?
1510.4 1
"- i '1s'n.4 1584 1798
_ ‘ 15,1 535 15$ N185! 1:11.: ‘ V 139° gg 1799 Llmoo
no § _ ‘ -- Man!Chamge 1 - _§ , 1002.0 , ‘ mu 10403 ""”’°'“"°' 1 1m: ;
30-] I Z I 58 ‘ I i Il
mu 1m: . _ I a ‘Ill-0 I 1
'°__' 10 — J5 - _ 1 " ‘ ' 1110.0 = 1: , I 1 I 1 i 1 will I ll,
‘
,_l,_ - .1 “ A 1 -. _ . 1. . 1 l . ‘ . -,1 . 1 1 ~
]'T_*-I.YIYI]II!'] r1r|vII_T_Y|||1||1I1f|1v1fv1r*j11Iv|||1|'-1-11111|['II|]||v;1;|v||I|zllvrvvyzlvv
1550 1% 10$ "N 17” ill) 1150 III! ISO moo
LUOIQQ
Fig. 6.6. The MALDI MS spectrum of 27. The insets are well agreeing calculated
isotropic distribution patterns.
For the carbohydrazone Zn(Il) complex 28, the base peak centered at 1942.8
assigned to [Zn4(HL4)L43]+ (calc. 1943) is found characteristic and agrees well with
calculated isotropic distribution pattern. Other main peaks are seen centered at m/z
2006.7, 1520.8, 1718.8, 1690.8 and 973. All these peaks are found to be in well
agreement with calculated isotropic distribution patterns (Fig. 6.7) of assigned species
[Zn4(1—lL4)L43- 2CI—l3OH]+ (calc. 2007), [zn.L“,-H*]* (calc. 1521), [zn..L‘,-H*+
242