We have calculated the reduced transition probabilities B(M2, 9/2+ → 5/2- ) of odd 65Ni, 67Zn, 69Ge, and 71Se nuclei with neutron number N=37. The theoretical calculations of the reduced transition probabilities are compared with the experimental values. The width of isomeric levels, mean-life of isomers, and Weisskopf hindrance factors of those nuclei were calculated. The systematic isomeric levels are plotted as a function of odd mass number and indicated that isomeric level decreases with an increase in the mass number.
