Table 1 Amino acid gas phase chiroptical properties and inducible ee values for an extent of reaction ξ = 0.9999.

Compound	Transition A			Transition B			Transition C
Compound	λ/nm	g	ee (%)^a	λ/nm	g	ee (%)^a	λ/nm	g	ee (%)^a
l-Alanine	244	−0.0039	\|1.77\|	214	0.0013	\|0.61\|	173	−0.0007	\|0.32\|
l-2-Aminobutyric acid	244	−0.0042	\|1.90\|	220	0.0029	\|1.35\|	176	−0.0005	\|0.25\|
l-Proline	236	−0.0021	\|1.62\|	200	0.0002	\|0.20\|	192	−0.0001	\|0.08\|
l-Valine				226	0.0031	\|1.42\|	176	−0.0004	\|0.17\|
l-Norvaline	245	−0.0016	\|0.75\|	219	0.0025	\|1.14\|	175	−0.0006	\|0.27\|
l-Isovaline	246	0.0017	\|0.77\|	203	−0.0008	\|0.38\|	179	0.0003	\|0.12\|
l-Leucine	247	−0.0019	\|0.88\|	221	0.0027	\|1.22\|	174	−0.0007	\|0.30\|

^aThe lower limit of inducible ee is calculated using²¹: \(| \% {{{{{{ee}}}}}}|\ge (1-{(1-\xi )}^{\frac{|{g}|}{2}})\times 100 \%,\) with ξ = 0.9999.

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