According to the Wall Street Journal (Pellajaro, 2021), “Investors in search of higher returns and lower taxes are scooping up debt sold by state local governments…” Municipal bonds (munis) total 39 billion dollars 2021. Your investment portfolio should contain a basket investments that include stocks bonds. These known as equity fixed income instruments. A well-diversified minimizes your risk ...

The bond parameters and conformations of the N-H and C=O bonds of the SO(2)-NH-CO-C group in the title compound, C(12)H(17)NO(3)S, anti to each other, are similar to what has been observed in related structures. The benzene ring and the SO(2)-NH-CO-C group make a dihedral angle of 71.2 (1)°. Inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into centrosymmetric dimers.

BACKGROUND Shape complementarity and non-covalent interactions are believed to drive protein-ligand interaction. To date protein-protein, protein-DNA, and protein-RNA interactions were systematically investigated, which is in contrast to interactions with small ligands. We investigate the role of covalent and non-covalent bonds in protein-small ligand interactions using a comprehensive dataset ...

antioxidants are compounds which can prevent biological and chemical substances from oxidative damage by reactive oxygen species. flavonoids are the most important class of polyphenolic compounds that because of their antioxidant characters possess biological activities and pharmacological effects. chrysin-6-c-fucopyranoside and chrysin-3-malonyl-6-c-fucopyranoside are mono c-glycosyl derivativ...

The title compound, C(12)H(14)N(2)O(3)S, adopts a cis-trans geometry of the thio-urea group and is stabilized by intra-molecular hydrogen bonds between the carbonyl O atoms and the H atom of the thio-amide group and by a C-H⋯S interaction. Mol-ecules are linked by two inter-molecular hydrogen bonds (C-H⋯O and N-H⋯O), forming a one-dimensional chain parallel to the c axis.

In the title compound, C(9)H(13)N(2)O(+)·ClO(4) (-), the dihedral angle between the planes of the amide group and the pyridinium fragment is 34.11 (14)°. In the crystal, the cations are connected by N-H⋯O hydrogen bonds between the amide groups into chains extended along the a axis. Hydrogen bonds between the pyridinium N-H group and the perchlorate anions organize the chains into a two-dimensi...

In the title 1:1 adduct, C9H12N2O2·C6H6O, the dihedral angle between the benzene ring and the salicylic amide group is 6.68 (6)°. The conformation of the amide group is supported by two intra-molecular N-H⋯O hydrogen bonds, which close S(6) and S(7) rings. In the crystal, the components are linked by O-H⋯O and N-H⋯O hydrogen bonds, generating (100) sheets.

In the title compound, C10H10Cl2N2OS, the mol-ecule adopts a trans-cis conformation with respect to the position of the carbonyl group and the chloro-phenyl groups relative to the thiono group across the C-N bonds. The mol-ecule is stabilized by an N-H⋯O hydrogen bond. In the crystal, mol-ecules are linked by N-H⋯S and C-H⋯O hydrogen bonds, forming zigzag chains along the b-axis direction. C-H⋯...

in recent decades, issuing of catastrophe bonds for covering the catastrophe losses such as earthquakes, floods, etc. are getting more widespread. the purpose of this paper is determination of the optimal interest rates for investors of these securities, so that it becomes attractive for them. this paper uses fire insurance data in the period of 1328 to 1388 and considers the peaks over thresho...

reliability wiener number is a modification of the original wiener number in which probabilities are assigned to edges yielding a natural model in which there are some (or all) bonds in the molecule that are not static. various probabilities naturally allow modelling different types of chemical bonds because chemical bonds are of different types and it is well-known that under certain condition...