The complexation properties of them with alkali and alkaline earthmetal ions have been investigated by means of visible spectra in solutions.
借助于可见光谱的测定，考查了它们在溶液中与碱金属和碱土金属盐等的配位性能。
2
By two alkyl halide with alkalimetal or alkaline earth metal polysulfides from condensation.
由二卤代烷与碱金属或碱土金属的多硫化物缩聚而成。
3
Methods and recent development of isolation of structurally characterizable alkali, alkaline earth and lanthanide metal ketyl radical complexes were reviewed in the paper.