Energy levels of [Formula Presented] populated in the [Formula Presented] decay of [Formula Presented]

[Formula Presented]-Particle, conversion-electron, and [Formula Presented]-ray singles spectra of [Formula Presented] sources containing few Bq activities were measured with high-resolution semiconductor detectors. [Formula Presented] coincidence and level half-life measurements were also performed. On the basis of these measurements the following single-particle states have been identified in [Formula Presented]: [Formula Presented], 0 keV; [Formula Presented], 227.4 keV; [Formula Presented], 285.4 keV; [Formula Presented], 404.9 keV; [Formula Presented], [Formula Presented]. The measured single-particle energies are in good agreement with energies calculated with a Woods-Saxon single-particle potential. From the measured half-life of the [Formula Presented] level and the [Formula Presented] branching ratio, a [Formula Presented] value of [Formula Presented] has been deduced between the [Formula Presented] and [Formula Presented] bands. The large [Formula Presented] value is an indication of octupole mixing in the [Formula Presented] level.