5A.5 Draw all Newman projections for a 360o rotation around the indicated bond of the molecules below then draw a graph of strain energy versus angle. a) propane down C2-C3 b) 2-methyl butane down C2-C3 c) 2,3-dimethyl butane down C2-C3 5A.6 Draw the most stable and least stable conformation of the following molecules:
Aug 24, 2020 · A Newman projection is a diagram used to depict a specific conformation of a molecule. eg. 1: Staggered conformation of ethane. To draw the staggered conformation of ethane as a Newman projection look at the molecule from the point shown above. The front carbon atom and the three carbon-hydrogen bonds originating from it are seen. This is also referred to as a staggered formation (see Newman Projections). In this conformer the bonds, and the electrons in the bonds have more space, so have less steric interaction (see graph of energies). Physical Properties: Colorless, odorless gas. Molecular Weight: 30.07. Density: 1.212 kg/cm 3. Solubility in H 2 O: 4.7 g/100 mL
An alternative to the combined approach is to apply the recent dual-projection approach .To do so, take the weighted projection of both modes of a bipartite network, analyze the community structure of both modes separately, and then combine the community partitions in a fashion that maximizes within-community ties.