Table 2. Four-Coordinate and Five-Coordinate Geometry Indices for the Synthesized Complexes and Representative Examples from the Literature.
| complexes | geometry | τ4 | THCDA/100 | FCGP/100 | τ5 | reference |
|---|---|---|---|---|---|---|
| square planar (D4h) | square planar | 0.000 | –1.43 | –0.400 | (49) | |
| trigonal pyramidal (C3v) | trigonal pyramidal | 0.850 | 0.000 | 1.00 | (49) | |
| [LTHZnCl2] | tetrahedral | 0.897 | 0.514 | 0.402 | this work | |
| [LTHZnBr2] | tetrahedral | 0.886 | 0.458 | 0.427 | this work | |
| [LTHPdCl2] | square planar | 0.109 | –1.26 | –0.170 | this work | |
| [LTHPdBr2] | square planar | 0.0745 | –1.32 | –0.249 | this work | |
| [(L-b)2ZnCl2]a | tetrahedral | 0.885 | 0.432 | 0.452 | (43) | |
| [(L-b)2PdCl2]a | square planar | 0.0626 | –1.34 | –0.265 | (43) | |
| [LCZnCl2]b | tetrahedral | 0.887 | 0.370 | 0.422 | (29) | |
| [LDPdCl2]c | tetrahedral | 0.870 | 0.337 | 0.415 | (29) | |
| [LBPdCl2]d | square planar | 0.0774 | –1.31 | –0.231 | (56) | |
| [LCZnCl2]e | square planar | 0.0754 | –1.31 | –0.243 | (56) | |
| tetrahedral (Td) | tetrahedral | 1.00 | 1.00 | 0.000 | (49) | |
| square pyramidal (C4v) | square pyramidal | 0.000 | (50, 51) | |||
| [LTHCd(μ-Cl)Cl]n | square pyramidal | 0.0033 | this work | |||
| [LTHCd(μ-Br)Br]2 | square pyramidal | 0.324 | this work | |||
| [(bpma)Cd(μ-Br)Br]2f | trigonal bipyramidal | 0.606 | (57) | |||
| [LACdBr2]g | square pyramidal | 0.071 | (26) | |||
| [LECdBr2]h | square pyramidal | 0.003 | (26) | |||
| trigonal bipyramidal (D3h) | trigonal bipyramidal | 1.00 | (50, 51) |
a
L-b = 4-methoxy-N-methyl-N-(pyridin-2-ylmethyl) aniline.
b
LC = N-cyclohexyl-1-(pyridin-2-yl)methanimine.
c
LD = 2,6-diethyl-N-(pyridin-2-ylmethylene)aniline.
d
LB = 2,4,6-trimethyl-N-((pyridin-2-yl)methylene)aniline.
e
LC = 4-nitro-N-((pyridin-2-yl)methylene)aniline.
f
bmpa = 4-bromo-N-((pyridin-2-yl)methylene) benzenamine.
g
LA = N1,N1-dimethyl-N2-(pyridin-2-ylmethylene)ethane-1,2-diamine.
h
LE = N1,N1-dimethyl-N3-(pyridin-2-ylmethylene) propane-1,3-diamine.