Cu7.62Bi6Se12Cl6I: Discovery of a Low Band Gap, Low Thermal Conductivity Mixed Anion Material Cara J. Hawkins, Batoul Almoussawi, Jan P. Scheifers, Manel Sonni, Aeshah A. Almushawwah, Troy D. Manning, Marco Zanella, Craig M. Robertson, Luke M. Daniels, Tim D. Veal, John B. Claridge and Matthew J. Rosseinsky SUPPLEMENTARY DATA X-Ray Photoelectron Spectroscopy (XPS) Data: CuBiSeClI_006_XPS_Se3d_Raw.csv CuBiSeClI_006_XPS_Bi4f_Raw.csv CuBiSeClI_006_XPS_Cl2p_Raw.csv CuBiSeClI_006_XPS_Cu2p_Raw.csv CuBiSeClI_006_XPS_I3d_Raw.csv CuBiSeClI_020_XPS_SEC_Raw.csv CuBiSeClI_006_XPS_VB_Raw.csv Raman Data: CuBiSeClI_Raman.csv UV-Vis Spectroscopy Data: CuBiSeClI_006_UVVis_pcR_231024.csv Thermal Conductivity Data: CuBiSeClI_SPS3_ThermalConductivity_160126.csv Heat Capacity Data: CuBiSeClI_HeatCapacity.csv Powder X-Ray Diffraction Data: CuBiSeClI_006_PXRD.xy Compositional Analysis: EDX_ExploratoryReactions_CuBiZn.csv CuBiSeClI_Powder_EDX.csv CuBiSeClI_Pellet_EDX.csv CuBiSeClI_Powder_WDX.csv Environmental Stability PXRD Data: CuBiSeClI_021_Air_10mins.xy CuBiSeClI_021_Air_3days.xy CuBiSeClI_021_7days_air.xy CuBiSeClI_021_2weeksair.xy