Crystal system: monoclinic
| a: | 8.7411 (±0.0004) Å |
| b: | 20.0449 (±0.0007) Å |
| c: | 8.9845 (±0.0003) Å |
| α: | 90° |
| β: | 91.571 (±0.003)° |
| γ: | 90° |
Starting materials: SnCl2·2H2O, HI, H3PO2, histamine dihydrochloride
Product: Black plate-like crystals
Description: SnCl2·2H2O was dissolved in a solution with HI and H3PO2 and heated while stirring for 20 minutes at 120 degrees Celsius. The solution became bright yellow. Histamine dihydrochloride was then dissolved into another HI solution and also heated (1:1 molar ratio to Sn). Then the latter solution was carefully layered on top of the PbI2 solution and dark orange crystals precipitated upon cooling.
Method: Single-crystal X-ray diffraction
Description: Either a STOE IPDS 2 or IPDS 2T diffractometer with Mo Kalpha radiation operated at 50 kV and 40 mA in a nitrogen atmosphere was used. Integration and absorption corrections were made with the STOE X-AREA programs. Structure was solved directly and refined with full-matrix least-squares on F2 with the OLEX2 program package.
Starting materials: SnCl2·2H2O, HI, H3PO2, histamine dihydrochloride
Product: Black plate-like crystals
Description: SnCl2·2H2O was dissolved in a solution with HI and H3PO2 and heated while stirring for 20 minutes at 120 degrees Celsius. The solution became bright yellow. Histamine dihydrochloride was then dissolved into another HI solution and also heated (1:1 molar ratio to Sn). Then the latter solution was carefully layered on top of the PbI2 solution and dark orange crystals precipitated upon cooling.
Method: Time-Resolved Photoluminescence Spectroscopy
Description: TR-PL was collected at room temperature using the Hamamatsu C4334 Steakscope streack camera system. The instrument response function is about 30 picoseconds and the temporal resolution after deconvolution fitting is about 10 picoseconds. 400 excitation pulses were generated at a high repetition rate from an ultrafast laser system.
Comment: Selected data: Time = 0.206 ns
Starting materials: SnCl2·2H2O, HI, H3PO2, histamine dihydrochloride
Product: Black plate-like crystals
Description: SnCl2·2H2O was dissolved in a solution with HI and H3PO2 and heated while stirring for 20 minutes at 120 degrees Celsius. The solution became bright yellow. Histamine dihydrochloride was then dissolved into another HI solution and also heated (1:1 molar ratio to Sn). Then the latter solution was carefully layered on top of the PbI2 solution and dark orange crystals precipitated upon cooling.
Method: Diffuse Reflectance Spectra
Description: A Shimadzu UV-3600 UV-vis NIR spectrometer was used to measure optical diffuse reflectance at room temperature. BaSO4 was used as the 100% reflectance reference. Reflectance vs wavelength was used to get the absorption spectrum via the Kubelka-Munk equation, which was then used to extrapolate the optical band gaps.
Crystal system: monoclinic
| Band gap (optical, diffuse reflectance), eV |
|---|
Starting materials: SnCl2·2H2O, HI, H3PO2, histamine dihydrochloride
Product: Black plate-like crystals
Description: SnCl2·2H2O was dissolved in a solution with HI and H3PO2 and heated while stirring for 20 minutes at 120 degrees Celsius. The solution became bright yellow. Histamine dihydrochloride was then dissolved into another HI solution and also heated (1:1 molar ratio to Sn). Then the latter solution was carefully layered on top of the PbI2 solution and dark orange crystals precipitated upon cooling.
Method: Diffuse Reflectance Spectra
Description: A Shimadzu UV-3600 UV-vis NIR spectrometer was used to measure optical diffuse reflectance at room temperature. BaSO4 was used as the 100% reflectance reference. Reflectance vs wavelength was used to get the absorption spectrum via the Kubelka-Munk equation, which was then used to extrapolate the optical band gaps.