2.Dongpu depression, a oil-gas bearing basin, is situated in the southwest Bohaiwan basin.Puwei sag is a subunit that is tectonically located in the north central upheave of Dongpu depression.
3.Two new exocyclic ring-fused boron-dipyrromethene (BDP) dyes with benzo crown ether subunit at meso-position were prepared.Their spectroscopic and electrochemical properties were investigated.