In this Communication, the statement on page 10183, right column, “In one case, that of tetrakis(t‐butyl)cyclobutadiene, crystallographic X‐ray data measured at room temperature suggested a square geometry, and the authors argued that it has a triplet ground state.^[8]”, is wrong and should be replaced by: “In one case, the possibility of a diradical reactivity was suggested, but no EPR studies supporting a triplet state were reported.^[8]” The following sentence, “However, no spectroscopic support for this claim (e.g. EPR) was presented and the observed chemistry of this compound did not grant a conclusive evidence for the triplet state”, should be removed.

在本来文中，第10183页右栏的声明：“在一种情况下，四（叔丁基）环丁二烯在室温下测得的结晶X射线数据表明其为方形几何形状，作者认为它具有三重态基态。^[8]是错误的，应替换为：“在一种情况下，有人提出可能发生双基反应性，但没有报道支持三线态的EPR研究。^[8] “以下句子：“但是，没有提出对此主张的光谱支持（例如EPR），并且观察到的该化合物的化学性质未提供有关三重态的确凿证据”。