carbothermic reduction of the pentaoxide. It reacts with iodine (400 °C), bromine (350 °C), and thionvl chloride (200 °C) in evacuated sealed vessels to vield the approoriate pentahaiibe. The tetraiodide, Pal4, is obtained by interaction of the monocarbide with either protactinium penta-iodide (600 °C) or mercury(II) iodide (500 °C)in vacuo. X-Ray powder-diffraction results and vibrational spectral
carb
碳酸盐已通过五氧化碳的碳热还原法制备。它在抽真空的密闭容器中与
碘(400°C),
溴(350°C)和亚
硫酰氯(200°C)反应,以产生合适的五氢化
萘。的四
碘化帕尔4,由一碳化物的相互作用与任一
镤五
碘(600℃)或
汞得到(II),
碘化(500℃)在真空中。报告了卤化物的X射线粉末衍射结果和振动光谱数据。