  We report on the creation of ultracold 84Sr2 molecules in the electronic
ground state. The molecules are formed from atom pairs on sites of an optical
lattice using stimulated Raman adiabatic passage (STIRAP). We achieve a
transfer efficiency of 30% and obtain 4x10^4 molecules with full control over
the external and internal quantum state. STIRAP is performed near the narrow
1S0-3P1 intercombination transition, using a vibrational level of the 0u
potential as intermediate state. In preparation of our molecule association
scheme, we have determined the binding energies of the last vibrational levels
of the 0u, 1u excited-state, and the 1\Sigma_g^+ ground-state potentials. Our
work overcomes the previous limitation of STIRAP schemes to systems with
Feshbach resonances, thereby establishing a route that is applicable to many
systems beyond bi-alkalis.
