Efficient photocatalytic H2 evolution catalyzed by an unprecedented robust molecular semiconductor {Fe11} nanocluster without cocatalysts at neutral conditions

An unprecedented molecular polyanionic metal oxide cluster of eleven-FeIII substituted antimoniotungstate Na27[Fe11(H2O)14(OH)2(W3O10)2(α-SbW9O33)6]·103H2O showed remarkable catalytic property for light driven hydrogen evolution.