Figure 6.

Transition temperature T _C, as a function of pore diameter D’, along with distinctive transition temperatures reported previously for water confined in MCM-41. The diameter of the SWCNT pore was defined by $D^{\prime }=\left(D-t\right)$ where t ≈ 0.3 − 0.4 nm, the thickness of the SWCNT wall. AC: melting temperatures of ice Ih (dotted gray line) and heat-capacity maximum temperatures (green squares with crosses) obtained by adiabatic calorimetry for MCM-41⁵⁵; XRD: melting temperatures of ice Ih obtained from XRD patterns of MCM-41⁵⁶; NMR: anomalous temperatures obtained from NMR relaxation times in MCM-41⁴⁹; QENS: anomalous temperatures obtained from quasielastic neutron scattering measurements^48,50. The closed red circles were obtained from XRD patterns in ref.²² and Supplementary Fig. S4 in the present paper.