Chiroptical data of 1a and 1b.
Compound | [α]25Dd | [M]25De | g abs f/10−3 (wavelength) | g lum g/10−3 (wavelength) |
---|---|---|---|---|
(Sp,Sp)-(M,M,M,M)-1a (>99% ee)a | −3357° | −45 700° | −9.48 (461) | −4.92 (512) |
(Rp,Rp)-(P,P,P,P)-1a (>99% ee)b | — | — | +9.58 (462) | +4.95 (512) |
(Sp,Sp,Rp)-(M,M,M,M,P,P)-1b (62% ee)a | −466°c | −9520°c | −2.74 (422)c | −1.67 (490)c |
(Rp,Rp,Sp)-(P,P,P,P,M,M)-1b (62% ee)b | — | — | +2.90 (424)c | +1.97 (488)c |
In CH2Cl2 (1.0 × 10−5 M) at 25 °C.
In CH2Cl2 (1.1 × 10−5 M) at 25 °C.
Values are calculated as 100% ee.
[α]25D: optical rotation.
[M]25D: molar optical rotation (= M[α]25D/100).
g abs: CD dissymmetry factor.
g lum: CPL dissymmetry factor.