Crystal system: monoclinic
| a: | 10.5412 (±0.0013) Å |
| b: | 11.5023 (±0.0014) Å |
| c: | 11.925 (±0.0014) Å |
| α: | 90° |
| β: | 109.996 (±0.003)° |
| γ: | 90° |
Starting materials: Histamine, PbBr2, HBr
Product: plate-like yellow crystals
Description: 0.34 mmol PbBr2, 0.35 mmol histamine are mixed in 3 mL of 9M HBr. The mixture is then heated to 100 ˚C for 2 h to dissolve the solid, and then slowly cooled down to room temperature at −2 °C·hr−1.
Method: Single crystal X-ray diffraction
Description: Frames were collected using Bruker D8 Venture diffractometer equipped with a Photon 100 CMOS detector employing Mo Kα radiation (λ=0.71073 Å).
Crystal system: monoclinic
| a: | 10.6055 (±0.0013) Å |
| b: | 11.6091 (±0.0014) Å |
| c: | 11.9312 (±0.0014) Å |
| α: | 90° |
| β: | 110.061 (±0.003)° |
| γ: | 90° |
Starting materials: Histamine, PbBr2, HBr
Product: plate-like yellow crystals
Description: 0.34 mmol PbBr2, 0.35 mmol histamine are mixed in 3 mL of 9M HBr. The mixture is then heated to 100 ˚C for 2 h to dissolve the solid, and then slowly cooled down to room temperature at −2 °C·hr−1.
Method: Single crystal X-ray diffraction
Description: Frames were collected using Bruker D8 Venture diffractometer equipped with a Photon 100 CMOS detector employing Mo Kα radiation (λ=0.71073 Å).
Crystal system: monoclinic
| a: | 10.6322 (±0.0018) Å |
| b: | 11.617 (±0.002) Å |
| c: | 11.955 (±0.002) Å |
| α: | 90° |
| β: | 69.941 (±0.002)° |
| γ: | 90° |
Starting materials: PbBr2 (99.99%), Histamine (98%), HBr (40%)
Product: Pink crystals (yield: 40.3%)
Description: Equimolar amounts of PbBr2 (0.367g, 0.1 mmol) and histamine (0.113 g 0.1 mmol) were mixed in 10mL HBr by heating and refluxing at 90 °C and then, the solution slowly cooled to room temperature in N2 atmosphere.
Method: Single-crystal X-ray diffraction
Description: A Rigaku RAXIS-RAPID image plate diffractometer employed the ω-scan technique and used Mo Kα radiation (λ=0.71069 Å). Structures were solved via direct methods using SHELXS-97 and full-matrix least-squares techniques using SHELXL-97 implemented in WINGX.