Table 2
(a) Pseudotransition metal family (Zn, Cd) interacting with methane. Relative energies (kcal mol−1) of the reactants, intermediate HXCH3, and final products for three lowest states of the metals.

M: metalZnaCdb
(1S, 3P, 1P)(1S, 3P, 1P)

M(2nd) + CH4133.7~141124.9125.6
M(1st) + CH493.4~9489.384.9
H + MCH3~9367.9
HM + CH3~8256.6
HMCH3~2531.9c
M(gs) + CH40000

aFrom [80]
bFrom [86]
cFrom [95].
(b) Pseudotransition metal family (Zn, Cd, Hg) interacting with silane. Relative energies (kcal mol−1) of the reactants, the HXSiH3 intermediary and final products for threelowest states of these metals.

M: metalZnaCdbHgb
(1S, 3P, 1P)(1S, 3P, 1P)(1S, 3P, 1P)

M(2nd) + SiH4133.7141124.9128.5154.6157.6
M(1st) + SiH493.493.889.384.4119.5114.6
H + MSiH38489.095.4
HM + SiH370.4747475.583.3387.6
HMSiH311.520.728.0
M(gs) + SiH4000000

aFrom [9]
bFrom [10].
(c) Pseudotransition metal family (Cd, Hg) interacting with germane. Relative energies (kcal mol−1) of the reactants, the HXGeH3 intermediary, and final products for three lowest states of these metals.

X: metalCdaHga
(1S, 3P, 1P)(1S, 3P, 1P)

X(2nd) + GeH4124.9128.5154.6157.6
X(1st) + GeH489.384.4119.5114.6
H + XGeH379.987.7
HX + GeH368.970.375.380.0
HXGeH313.621.0
X(gs) + GeH40000

aFrom [10]
bFrom [93].