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Archive for August, 2007

Diamonds Almost Forever

Posted by David Bradley on August 22nd, 2007

Diamond ringDiamonds almost as old as the Earth itself have been found locked in ancient crystals of zircon from the Jack Hills region of Western Australia, according to scientists writing in Nature this week. The diamonds could provide unique insights into the early evolution of our planet’s crust.

Diamonds almost forever…

Azadirachtin Done

Posted by David Bradley on August 22nd, 2007

Azadirachtin structureSteve Ley and his team (some 40 PhD students over the last two decades) have finally cracked the total synthesis of the natural insecticide azadirachtin.

Azadirachtin done…

Blue-Green Porphyrin Flip

Posted by David Bradley on August 10th, 2007

Blue-green porphyrinA molecular Moebius strip that can flip between single-sided and double-sided modes has been synthesised by chemists in Poland without snapping the ring.

Blue-Green Porphyrin Flip