Zn(ii) coordination polymer of an in situ generated 4-pyridyl (4Py) attached bis(amido)phosphate ligand, [PO2(NH4Py)2]− showing preferential water uptake over aliphatic alcohols
摘要:
由原位生成的配体 [PO2(NH4Py)2]– (L–) 合成了两种组成为 [ZnL(HCO2)]– 的多晶型二维配位聚合物。配体 L- 是通过金属辅助的 P-N 键水解反应从相应的鏻盐 1 [P(NH4Py)4]Cl 或中性磷三酰胺 2 [PO(NH4Py)3] 生成的。 ]。聚合物 [ZnL(HCO2)] 的去溶剂化样品具有极性微孔,对于 CO2 吸附显示出 I 型等温线,而对于 N2 则观察到 II 型行为。 [ZnL(HCO2)] 去溶剂化样品的蒸气吸附等温线显示,与脂肪醇相比,水蒸气优先吸附。
Zn(ii) coordination polymer of an in situ generated 4-pyridyl (4Py) attached bis(amido)phosphate ligand, [PO2(NH4Py)2]− showing preferential water uptake over aliphatic alcohols
摘要:
由原位生成的配体 [PO2(NH4Py)2]– (L–) 合成了两种组成为 [ZnL(HCO2)]– 的多晶型二维配位聚合物。配体 L- 是通过金属辅助的 P-N 键水解反应从相应的鏻盐 1 [P(NH4Py)4]Cl 或中性磷三酰胺 2 [PO(NH4Py)3] 生成的。 ]。聚合物 [ZnL(HCO2)] 的去溶剂化样品具有极性微孔,对于 CO2 吸附显示出 I 型等温线,而对于 N2 则观察到 II 型行为。 [ZnL(HCO2)] 去溶剂化样品的蒸气吸附等温线显示,与脂肪醇相比,水蒸气优先吸附。
Amines and amine derivatives that improve the buffering range, and/or reduce the chelation and other negative interactions of the buffer and the system to be buffered. The reaction of amines or polyamines with various molecules to form polyamines with differing pKa's will extend the buffering range, derivatives that result in polyamines that have the same pKa yields a greater buffering capacity. Derivatives that result in zwitterionic buffers improve yield by allowing a greater range of stability.