CaGaH4 crystallizes in the monoclinic P2_1 space group. Ca(1) is bonded in a 4-coordinate geometry to one H(1), one H(2), one H(3), and one H(4) atom. Ga(1) is bonded in a tetrahedral geometry to one H(1), one H(2), one H(3), and one H(4) atom. There are four inequivalent H sites. In the first H site, H(1) is bonded in a distorted bent 150 degrees geometry to one Ca(1) and one Ga(1) atom. In the second H site, H(2) is bonded in a bent 120 degrees geometry to one Ca(1) and one Ga(1) atom. In the third H site, H(3) is bonded in a bent 150 degrees geometry to one Ca(1) and one Ga(1) atom. In the fourth H site, H(4) is bonded in a bent 120 degrees geometry to one Ca(1) and one Ga(1) atom.
CaGaH4 crystallizes in the monoclinic P2_1 space group. Ca(1) is bonded in a 4-coordinate geometry to one H(1), one H(2), one H(3), and one H(4) atom. The Ca(1)-H(1) bond length is 2.24 Å. The Ca(1)-H(2) bond length is 2.30 Å. The Ca(1)-H(3) bond length is 2.25 Å. The Ca(1)-H(4) bond length is 2.30 Å. Ga(1) is bonded in a tetrahedral geometry to one H(1), one H(2), one H(3), and one H(4) atom. The Ga(1)-H(1) bond length is 1.61 Å. The Ga(1)-H(2) bond length is 1.61 Å. The Ga(1)-H(3) bond length is 1.59 Å. The Ga(1)-H(4) bond length is 1.60 Å. There are four inequivalent H sites. In the first H site, H(1) is bonded in a distorted bent 150 degrees geometry to one Ca(1) and one Ga(1) atom. In the second H site, H(2) is bonded in a bent 120 degrees geometry to one Ca(1) and one Ga(1) atom. In the third H site, H(3) is bonded in a bent 150 degrees geometry to one Ca(1) and one Ga(1) atom. In the fourth H site, H(4) is bonded in a bent 120 degrees geometry to one Ca(1) and one Ga(1) atom.