Transition temperature (°C), associated (enthalpy of transitions in kJ mol−1), and entropy changes of Ina–da.
Compounds | T Cr–SmA | T Cr–N | T SmA–N | T SmA–I | T N–I | ΔSSmA–N/R | ΔSSmA–I/R | ΔSN–I/R |
---|---|---|---|---|---|---|---|---|
I6a | 165.9(51.31) | 369.0b | — | |||||
I8a | 161.4(44.67) | 352.0b | ||||||
I10a | 157.5(50.46) | 185.1(0.33) | 348.0b | 0.087 | ||||
I12a | 155.4(50.08) | 211.4(0.40) | 339.6(3.60) | 0.098 | 0.707 | |||
I14a | 153.4(77.32) | 229.6(0.55) | 327.4(3.98) | 0.132 | 0.797 | |||
I16a | 151.7(47.09) | 242.9(0.64) | 314.4(4.23) | 0.149 | 0.880 | |||
I6b | 149.3(24.83) | 366.0b | ||||||
I8b | 153.8(21.95) | 188.1(0.41) | 355.4(1.37) | 0.110 | 0.460 | |||
I10b | 152.5(35.95) | 220.8(0.59) | 338.3(2.69) | 0.143 | 0.530 | |||
I12b | 155.1(38.91) | 240.0(0.68) | 327.0(3.39) | 0.160 | 0.680 | |||
I14b | 130.3(26.31) | 252.3(0.96) | 310.0(3.88) | 0.220 | 0.800 | |||
I16b | 122.4(62.38) | 257.0(1.10) | 298.1(4.23) | 0.250 | 0.890 | |||
I6c | 156.5(30.56) | 211.7(0.87) | 323.5(2.88) | 0.220 | 0.580 | |||
I8c | 145.4(19.21) | 234.9(1.01) | 305.7(2.93) | 0.240 | 0.610 | |||
I10c | 135.7(44.37) | 245.3(1.64) | 290.1(3.23) | 0.380 | 0.690 | |||
I12c | 129.0(37.57) | 249.2(1.78) | 276.8(3.38) | 0.410 | 0.740 | |||
I14c | 129.6(57.78) | 249.3(1.85) | 265.0(3.53) | 0.426 | 0.790 | |||
I16c | 129.2(59.05) | 245.4(1.94) | 254.3(3.81) | 0.450 | 0.870 | |||
I6d | 168.7(29.47) | 319.0(0.83) | 370.0b | 0.170 | — | |||
I8d | 146.1(20.34) | 335.9(1.40) | 360.0b | 0.280 | — | |||
I10d | 143.8(21.28) | 338.5(2.19) | 350.5(3.01) | 0.430 | 0.580 | |||
I12d | 137.9(21.98) | 336.6(4.26) | 340.2(3.16) | 0.840 | 0.620 | |||
I14d | 135.7(22.57) | 330.2(8.09) | 2.950 | |||||
I16d | 133.9(19.23) | 322.9(8.97) | 3.340 |
Cr–SmA denotes transition from solid to the SmA phase. Cr–N denotes transition from solid to the N phase. SmA–N denotes transition from SmA to the N phase. SmA–I denotes transition from SmA to the isotropic phase. N–I denotes transition from nematic to the isotropic phase.
Values detected by PLM only.