E clusters He Be NONE NaMg Metal clusters Metal clusters with p-donor ligands with p-acceptor ligands Al SiPIS CIlAr K Ca sc tiv MnFe co Ni CuZn Ga GelAs se br kr Rb srl y Zr nbMo tc ru rh Pd aglcd in sn sbl Te I Xe CsBa Ta WReos ir pt auG T Pb Bi Po atRn Fr ral ac rf db sg bh hs mt Naked clusters 原子簇合物在周期表中的分布 Note: p-donor, such as Br; p-acceptor, CO; Naked: Sng4原子簇合物在周期表中的分布 Note: p-donor, such as Br- ; p-acceptor, CO; Naked: Sn9 4-