Using the advantages of the salamo structure, we successfully constructed a coordination polymer [Cu2(L)]n(ClO4)n (CP) and a coordination dimer [Cu4(L)2(EtOH)2](NO3)2 (CD).The CP has primary building unit [Cu2(L)], which contains a fully deprotonated part (L)3- and two Cu(II) ions.These units are infinitely connected by Cu-O coordination bonds to form a 1-D chain-like secondary building unit [Cu2(L)]n.The CD has primary building unit [Cu2(L)(EtOH)], which contains a fully deprotonated part (L)3-, two Cu(II) ions, and a coordinated ethanol mol.Two primary building units are connected by Cu-O coordination bonds to form a dimer, which serves as the secondary building unit [Cu4(L)2(EtOH)2].Both the CP and CD are stabilized through the formation of Cu-O coordination bonds and π···π interactions.Addnl., secondary bonds are used to form supramol. assembly frameworks (SAFs).Reaction sites and secondary bonds were further analyzed and discussed through theor. calculations including MOs (MO), mol. electrostatic potentials (MEPs), Hirshfeld surfaces (HS), Interaction Region Indicators (IRI), Localized Orbital Locator (LOL), and Electron Localization Function (ELF).