[en] Shell-model calculations of the N=27 and 28 nuclei are carried out within the fsub(7/2)sup(n) + fsub(7/2)sup(n-1)(psub(3/2), psub(1/2), fsub(5/2))¹ configurations. Attempts are made to fix effective interactions which are relevant to the model space and can be used for systematic studies of the whole nuclei in this region. The E2 properties of the intruder states in the odd-mass N=27 nuclei are discussed. The calculation shows that there appear some sequences of collective states in ⁵¹Cr and ⁵³Fe, which are characterized by the strongly enhanced E2 transitions. Recent experiments support the calculated feature at least in the lower part of the level sequences. The isovector E2 and M1 transition rates from the analog to low-lying states in ⁵¹V are calculated and compared with the previous calculations and experiments. Role of spin-flip and spin-nonflip transitions are discussed. (author)