Os3(CO)10 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of four Os(CO)3 clusters and two Os(CO)4 clusters. In two of the Os(CO)3 clusters, Os(2) is bonded in a 3-coordinate geometry to one C(5), one C(6), and one C(7) atom. There are three inequivalent C sites. In the first C site, C(5) is bonded in a distorted linear geometry to one Os(2) and one O(5) atom. In the second C site, C(6) is bonded in a distorted linear geometry to one Os(2) and one O(6) atom. In the third C site, C(7) is bonded in a linear geometry to one Os(2) and one O(7) atom. There are three inequivalent O sites. In the first O site, O(5) is bonded in a single-bond geometry to one C(5) atom. In the second O site, O(6) is bonded in a single-bond geometry to one C(6) atom. In the third O site, O(7) is bonded in a single-bond geometry to one C(7) atom. In two of the Os(CO)3 clusters, Os(3) is bonded in a 3-coordinate geometry to one C(10), one C(8), and one C(9) atom. There are three inequivalent C sites. In the first C site, C(8) is bonded in a distorted linear geometry to one Os(3) and one O(8) atom. In the second C site, C(9) is bonded in a distorted linear geometry to one Os(3) and one O(9) atom. In the third C site, C(10) is bonded in a linear geometry to one Os(3) and one O(10) atom. There are three inequivalent O sites. In the first O site, O(8) is bonded in a single-bond geometry to one C(8) atom. In the second O site, O(9) is bonded in a single-bond geometry to one C(9) atom. In the third O site, O(10) is bonded in a single-bond geometry to one C(10) atom. In each Os(CO)4 cluster, Os(1) is bonded in a distorted see-saw-like geometry to one C(1), one C(2), one C(3), and one C(4) atom. There are four inequivalent C sites. In the first C site, C(1) is bonded in a linear geometry to one Os(1) and one O(1,4) atom. In the second C site, C(2) is bonded in a linear geometry to one Os(1) and one O(2) atom. In the third C site, C(3) is bonded in a distorted linear geometry to one Os(1) and one O(3) atom. In the fourth C site, C(4) is bonded in a linear geometry to one Os(1) and one O(1,4) atom. There are three inequivalent O sites. In the first O site, O(1,4) is bonded in a single-bond geometry to one C(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one C(2) atom. In the third O site, O(3) is bonded in a single-bond geometry to one C(3) atom.
Os3(CO)10 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of four Os(CO)3 clusters and two Os(CO)4 clusters. In two of the Os(CO)3 clusters, Os(2) is bonded in a 3-coordinate geometry to one C(5), one C(6), and one C(7) atom. The Os(2)-C(5) bond length is 1.93 Å. The Os(2)-C(6) bond length is 1.88 Å. The Os(2)-C(7) bond length is 1.87 Å. There are three inequivalent C sites. In the first C site, C(5) is bonded in a distorted linear geometry to one Os(2) and one O(5) atom. The C(5)-O(5) bond length is 1.16 Å. In the second C site, C(6) is bonded in a distorted linear geometry to one Os(2) and one O(6) atom. The C(6)-O(6) bond length is 1.16 Å. In the third C site, C(7) is bonded in a linear geometry to one Os(2) and one O(7) atom. The C(7)-O(7) bond length is 1.17 Å. There are three inequivalent O sites. In the first O site, O(5) is bonded in a single-bond geometry to one C(5) atom. In the second O site, O(6) is bonded in a single-bond geometry to one C(6) atom. In the third O site, O(7) is bonded in a single-bond geometry to one C(7) atom. In two of the Os(CO)3 clusters, Os(3) is bonded in a 3-coordinate geometry to one C(10), one C(8), and one C(9) atom. The Os(3)-C(10) bond length is 1.88 Å. The Os(3)-C(8) bond length is 1.92 Å. The Os(3)-C(9) bond length is 1.87 Å. There are three inequivalent C sites. In the first C site, C(8) is bonded in a distorted linear geometry to one Os(3) and one O(8) atom. The C(8)-O(8) bond length is 1.16 Å. In the second C site, C(9) is bonded in a distorted linear geometry to one Os(3) and one O(9) atom. The C(9)-O(9) bond length is 1.17 Å. In the third C site, C(10) is bonded in a linear geometry to one Os(3) and one O(10) atom. The C(10)-O(10) bond length is 1.16 Å. There are three inequivalent O sites. In the first O site, O(8) is bonded in a single-bond geometry to one C(8) atom. In the second O site, O(9) is bonded in a single-bond geometry to one C(9) atom. In the third O site, O(10) is bonded in a single-bond geometry to one C(10) atom. In each Os(CO)4 cluster, Os(1) is bonded in a distorted see-saw-like geometry to one C(1), one C(2), one C(3), and one C(4) atom. The Os(1)-C(1) bond length is 1.92 Å. The Os(1)-C(2) bond length is 1.92 Å. The Os(1)-C(3) bond length is 1.95 Å. The Os(1)-C(4) bond length is 1.95 Å. There are four inequivalent C sites. In the first C site, C(1) is bonded in a linear geometry to one Os(1) and one O(1,4) atom. The C(1)-O(1,4) bond length is 1.16 Å. In the second C site, C(2) is bonded in a linear geometry to one Os(1) and one O(2) atom. The C(2)-O(2) bond length is 1.16 Å. In the third C site, C(3) is bonded in a distorted linear geometry to one Os(1) and one O(3) atom. The C(3)-O(3) bond length is 1.16 Å. In the fourth C site, C(4) is bonded in a linear geometry to one Os(1) and one O(1,4) atom. The C(4)-O(1,4) bond length is 1.16 Å. There are three inequivalent O sites. In the first O site, O(1,4) is bonded in a single-bond geometry to one C(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one C(2) atom. In the third O site, O(3) is bonded in a single-bond geometry to one C(3) atom.