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This nucleus has not been observed. Its atomic mass is calculated to be 59.22 MeV. It is then unstable with respect to breakup into ¹⁴Be + 2n by 2.98 MeV. See (74TH01, 86AJ04, 87SA15). The first three excited states with J^π = 2⁺, 4⁺, 4⁺ are calculated to be at 1.90, 5.08, and 6.51 MeV using a (0 + 1)h-barω space shell model (85PO10).