谁能帮我准确翻译一下 our expectation 后的那个从句。万分感谢
Quite opposite to our expectation that the structures
evolving for the purposefully approached intercluster com-
pounds were primarily determined by the requirement to
optimize the Coulomb part of the lattice energy, the struc-
tures observed indicate that in the first place packing effi-
ciency is the structure-directing factor.