Crystal and molecular structures of two polymorphs of 4-methyl-2-nitroacetanilide (MNA)
โ Scribed by John C. Moore; Alan Yeadon; Rex A. Palmer
- Publisher
- Springer
- Year
- 1983
- Tongue
- English
- Weight
- 585 KB
- Volume
- 13
- Category
- Article
- ISSN
- 1572-8854
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Two polymorphs of Li 2 CuZrO 4 have been synthesized and their structures characterized by X-ray, neutron and electron diffraction. Both have novel types of ordered rock salt structure. b-Li 2 CuZrO 4 is tetragonal, a=4.165(1) ( A, c=9.418(1) ( A, I-4m2, Z=4, R I =5.9%; the four sets of octahedral s
## Abstract Studies on the solidโstate structure of two polymorphs of 4โmethylโ2โnitroacetanilide (MNA) were conducted using magicโangle spinning ^13^C, ^15^N and ^1^H NMR spectroscopy, together with firstโprinciples computations of NMR shielding (including use of a program that takes explicit acco