Na4CrH6O7Cl crystallizes in the triclinic P-1 space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a 10-coordinate geometry to one H(3), one H(5), two equivalent H(2), one O(1), two equivalent O(4), two equivalent O(5), and one Cl(1) atom. In the second Na site, Na(2) is bonded in a 10-coordinate geometry to one H(4), one H(6), two equivalent H(1), one O(2), one O(7), two equivalent O(3), and two equivalent O(6) atoms. In the third Na site, Na(3) is bonded in a 8-coordinate geometry to one H(3), one H(4), one O(3), one O(4), one O(5), one O(6), one O(7), and one Cl(1) atom. In the fourth Na site, Na(4) is bonded in a 6-coordinate geometry to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms. Cr(1) is bonded in an octahedral geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. There are six inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to two equivalent Na(2) and one O(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to two equivalent Na(1) and one O(4) atom. In the third H site, H(3) is bonded in a single-bond geometry to one Na(1), one Na(3), and one O(5) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one Na(2), one Na(3), and one O(6) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one Na(1) and one O(1) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one Na(2) and one O(2) atom. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Na(1), two equivalent Na(4), one Cr(1), and one H(5) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Na(2), two equivalent Na(4), one Cr(1), and one H(6) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Na(3), one Na(4), two equivalent Na(2), one Cr(1), and one H(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Na(3), one Na(4), two equivalent Na(1), one Cr(1), and one H(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Na(3), two equivalent Na(1), one Cr(1), and one H(3) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Na(3), two equivalent Na(2), one Cr(1), and one H(4) atom. In the seventh O site, O(7) is bonded in a water-like geometry to one Na(2) and one Na(3) atom. Cl(1) is bonded in a distorted L-shaped geometry to one Na(1) and one Na(3) atom.
Na4CrH6O7Cl crystallizes in the triclinic P-1 space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a 10-coordinate geometry to one H(3), one H(5), two equivalent H(2), one O(1), two equivalent O(4), two equivalent O(5), and one Cl(1) atom. The Na(1)-H(3) bond length is 2.54 Å. The Na(1)-H(5) bond length is 2.56 Å. There is one shorter (2.54 Å) and one longer (2.60 Å) Na(1)-H(2) bond length. The Na(1)-O(1) bond length is 2.44 Å. There is one shorter (2.44 Å) and one longer (2.59 Å) Na(1)-O(4) bond length. There is one shorter (2.36 Å) and one longer (2.43 Å) Na(1)-O(5) bond length. The Na(1)-Cl(1) bond length is 2.72 Å. In the second Na site, Na(2) is bonded in a 10-coordinate geometry to one H(4), one H(6), two equivalent H(1), one O(2), one O(7), two equivalent O(3), and two equivalent O(6) atoms. The Na(2)-H(4) bond length is 2.57 Å. The Na(2)-H(6) bond length is 2.56 Å. There is one shorter (2.52 Å) and one longer (2.61 Å) Na(2)-H(1) bond length. The Na(2)-O(2) bond length is 2.42 Å. The Na(2)-O(7) bond length is 2.41 Å. There is one shorter (2.52 Å) and one longer (2.59 Å) Na(2)-O(3) bond length. There is one shorter (2.38 Å) and one longer (2.42 Å) Na(2)-O(6) bond length. In the third Na site, Na(3) is bonded in a 8-coordinate geometry to one H(3), one H(4), one O(3), one O(4), one O(5), one O(6), one O(7), and one Cl(1) atom. The Na(3)-H(3) bond length is 2.56 Å. The Na(3)-H(4) bond length is 2.48 Å. The Na(3)-O(3) bond length is 2.52 Å. The Na(3)-O(4) bond length is 2.52 Å. The Na(3)-O(5) bond length is 2.35 Å. The Na(3)-O(6) bond length is 2.36 Å. The Na(3)-O(7) bond length is 2.40 Å. The Na(3)-Cl(1) bond length is 2.88 Å. In the fourth Na site, Na(4) is bonded in a 6-coordinate geometry to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms. The Na(4)-O(3) bond length is 2.50 Å. The Na(4)-O(4) bond length is 2.50 Å. There is one shorter (2.36 Å) and one longer (2.45 Å) Na(4)-O(1) bond length. There is one shorter (2.35 Å) and one longer (2.48 Å) Na(4)-O(2) bond length. Cr(1) is bonded in an octahedral geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. The Cr(1)-O(1) bond length is 1.99 Å. The Cr(1)-O(2) bond length is 1.97 Å. The Cr(1)-O(3) bond length is 2.05 Å. The Cr(1)-O(4) bond length is 2.05 Å. The Cr(1)-O(5) bond length is 2.01 Å. The Cr(1)-O(6) bond length is 2.01 Å. There are six inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to two equivalent Na(2) and one O(3) atom. The H(1)-O(3) bond length is 0.98 Å. In the second H site, H(2) is bonded in a single-bond geometry to two equivalent Na(1) and one O(4) atom. The H(2)-O(4) bond length is 0.98 Å. In the third H site, H(3) is bonded in a single-bond geometry to one Na(1), one Na(3), and one O(5) atom. The H(3)-O(5) bond length is 0.97 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one Na(2), one Na(3), and one O(6) atom. The H(4)-O(6) bond length is 0.98 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one Na(1) and one O(1) atom. The H(5)-O(1) bond length is 0.98 Å. In the sixth H site, H(6) is bonded in a single-bond geometry to one Na(2) and one O(2) atom. The H(6)-O(2) bond length is 0.99 Å. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Na(1), two equivalent Na(4), one Cr(1), and one H(5) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Na(2), two equivalent Na(4), one Cr(1), and one H(6) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Na(3), one Na(4), two equivalent Na(2), one Cr(1), and one H(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Na(3), one Na(4), two equivalent Na(1), one Cr(1), and one H(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Na(3), two equivalent Na(1), one Cr(1), and one H(3) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Na(3), two equivalent Na(2), one Cr(1), and one H(4) atom. In the seventh O site, O(7) is bonded in a water-like geometry to one Na(2) and one Na(3) atom. Cl(1) is bonded in a distorted L-shaped geometry to one Na(1) and one Na(3) atom.