| O 1s |
(i) 530.91 |
(i) 531.19 |
(i) 531.06 |
(i) 531.57 |
(i) C=O of
−COOH |
(24) |
| |
(ii) 532.14 |
(ii) 533.48 |
(ii) 532.38 |
(ii) 533.90 |
(ii) −COO–, ionic bonding
with Cd(II), but coordinate bonding with Hg(II) and Cr(III) |
(25) |
| |
(iii) 533.36 |
(iii) 535.63 |
(iii) 533.46 |
(iii) 534.51 |
(iii) O–H of −COOH, ionic bonding
with Cd(II), but coordinate bonding
with Hg(II) and Cr(III) |
(26) |
| |
(iv)
540.16 |
(iv) 540.54 |
(iv) 540.74 |
|
(iv) shake-up satellite band
of the O atom in the –CO–N(CHMe2)–CH2– segment of
PANIPN21 due to π–π* transition |
(2) |
| C 1s |
(i) 284.81 |
(i) 285.77 |
(i) 285.56 |
(i) 284.94 |
(i) C of hydrocarbon
moieties (i.e., CxHy) |
(27) |
| |
(ii) 286.82 |
(ii) 287.01 |
(ii) 286.75 |
(ii) 286.23 |
(ii) >CH–CO– or protonated C attached to N (i.e., −NH–CH< and
−NH–CH2−) |
|
| |
(iii) 287.88 |
(iii) 288.53 |
(iii) 288.19 |
(iii) 287.84 |
(iii)
C of C=O |
|
| N 1s |
(i) 399.70 |
(i) 398.70 |
(i) 399.78 |
(i) 399.91 |
(i) N of secondary
amides of both NIPAm side chains and MBA
cross-links of PANIPN21; formation of the amido-Hg covalent bond was
inferred from the decrease in BE for Hg(II)-PANIPN21; ionic bonding
between Cr(III) and N-donors |
(28) |
| |
|
(ii) 404.23 |
|
|
(ii)
coordinate bonding between Hg(II) and N-donor ligands |
|
| Hg 4f7/2
|
|
(i) 101.76 |
|
|
significant shifting from (i) 102.58
and (ii)
106.68 eV, indicating covalent/coordinate interactions between Hg(II)
and N-donor ligands |
(29) |
| Hg 4f5/2
|
|
(ii) 104.72 |
|
|
| Cd 3d5/2
|
|
|
(i) 404.75 |
|
(i) formation of (−COO)2Cd species in Cd(II)-PANIPN21 |
|
| |
|
|
(ii) 406.27 |
|
(ii)
ionic bonding |
| Cr 2p3/2
|
|
|
|
585.53 |
decreased with respect to the Cr(NO3)3 peak at 587.00 eV, indicating coordinate interaction
with Cr(III)
and −COO–
|
(30) |
