TOPIC: 1. Covalent Bonding

SUBTOPIC: 16. General

5034

What do the differences in properties between lithium acetylacetonate (m.p. very high, insoluble in chloroform) and beryllium acetylacetonate (m.p. 108°, b.p. 270°, soluble in chloroform) suggest about their structure? (Acetylacetone is CH₃COCH₂COCH₃ and has two hydrogen atoms which are sufficiently acidic to give salts with metals.) Show structures.

5292

Discuss briefly the nature of the inter- and intramolecular forces and factors which most influence solubility, melting points, and boiling points of organic compounds. Be specific in identifying the forces and factors, and give an example in each case using a specific chemical structure.