CPK® Atomic Models, Carbon Atom, Tetrahedral-4

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For constructing four-membered ring structures such as b-lactams, 67-0400 Cyclobutane and methylene cyclobutane. Covalent radii 0.77Å to atoms within the ring and 0.76Å to atoms outside the ring. Each face of the atom is marked with the appropriate covalent radius. Intraring bond angle is 88°.

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