A new 1-D extended vanadoborate containing triply bridged metal complex units

► The [V12B18O54(OH)6(H2O)]10 − clusters are connected by triply bridged [Na(H2O)4]+ ions into 1-D chain. ► 1 is the only example of the vanadoborates containing triply bridged metal complex units. ► The magnetic susceptibility shows the antiferromagnetic interaction between VIV cations in 1.