  We estimate the masses of the 1-- heavy four-quark and molecule states by
combining exponential Laplace (LSR) and finite energy (FESR) sum rules known
perturbatively to lowest order (LO) in \alpha_s but including non perturbative
terms up to the complete dimension-six condensate contributions. We use double
ratio of sum rules (DRSR) for determining the SU(3) breakings terms. The SU(3)
mass-splittings of about (50 - 110) MeV and the ones of about (250 - 300) MeV
between the lowest ground states and their 1st radial excitations are (almost)
heavy-flavour independent. The mass predictions summarized in Table 2 are
compared with the ones in the literature (when available) and with the three
Yc(4260, 4360, 4660) and Yb(10890) 1-- experimental candidates. We conclude
that the lowest observed state cannot be a pure 1-- four-quark nor a pure
molecule but may result from their mixings. We extend the above analyzes to the
0++ four-quark and molecule states which are about (0.5-1.0) GeV heavier than
the corresponding 1-- states, while the splittings between the 0++ lowest
ground state and the 1st radial excitation is about (300-500) MeV. We complete
the analysis by estimating the decay constants of the 1-- and 0++ four-quark
states. Our predictions can be tested using some alternative non-perturbative
approaches or/and at LHCb or some other hadron factories.
