LaC10P4(NO6)2 crystallizes in the monoclinic P2_1 space group. La(1) is bonded to one O(11), one O(12), one O(2), one O(5), one O(6), and one O(8) atom to form distorted LaO6 pentagonal pyramids that share  a cornercorner with one P(1)CO3 tetrahedra,  a cornercorner with one P(3)CO3 tetrahedra, corners with two equivalent P(2)CO3 tetrahedra, and corners with two equivalent P(4)CO3 tetrahedra. The La(1)-O(11) bond length is 2.56 Å. The La(1)-O(12) bond length is 2.60 Å. The La(1)-O(2) bond length is 2.57 Å. The La(1)-O(5) bond length is 2.47 Å. The La(1)-O(6) bond length is 2.62 Å. The La(1)-O(8) bond length is 2.64 Å. There are ten inequivalent C sites. In the first C site, C(1) is bonded in a bent 150 degrees geometry to one P(1) and one N(1) atom. The C(1)-P(1) bond length is 1.83 Å. The C(1)-N(1) bond length is 1.49 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one P(2) and one N(2) atom. The C(2)-P(2) bond length is 1.80 Å. The C(2)-N(2) bond length is 1.50 Å. In the third C site, C(3) is bonded in a single-bond geometry to one C(4) and one N(1) atom. The C(3)-C(4) bond length is 1.51 Å. The C(3)-N(1) bond length is 1.51 Å. In the fourth C site, C(4) is bonded in a bent 120 degrees geometry to one C(3) and one C(5) atom. The C(4)-C(5) bond length is 1.49 Å. In the fifth C site, C(5) is bonded in a bent 120 degrees geometry to one C(10) and one C(4) atom. The C(5)-C(10) bond length is 1.48 Å. In the sixth C site, C(6) is bonded in a water-like geometry to one P(3) and one N(2) atom. The C(6)-P(3) bond length is 1.84 Å. The C(6)-N(2) bond length is 1.50 Å. In the seventh C site, C(7) is bonded in a bent 120 degrees geometry to one P(4) and one N(1) atom. The C(7)-P(4) bond length is 1.81 Å. The C(7)-N(1) bond length is 1.50 Å. In the eighth C site, C(8) is bonded in a distorted single-bond geometry to one C(9) and one N(2) atom. The C(8)-C(9) bond length is 1.52 Å. The C(8)-N(2) bond length is 1.50 Å. In the ninth C site, C(9) is bonded in a bent 120 degrees geometry to one C(10) and one C(8) atom. The C(9)-C(10) bond length is 1.50 Å. In the tenth C site, C(10) is bonded in a bent 120 degrees geometry to one C(5) and one C(9) atom. There are four inequivalent P sites. In the first P site, P(1) is bonded to one C(1), one O(1), one O(2), and one O(3) atom to form distorted PCO3 tetrahedra that share  a cornercorner with one La(1)O6 pentagonal pyramid. The P(1)-O(1) bond length is 1.52 Å. The P(1)-O(2) bond length is 1.55 Å. The P(1)-O(3) bond length is 1.53 Å. In the second P site, P(2) is bonded to one C(2), one O(4), one O(5), and one O(6) atom to form PCO3 tetrahedra that share corners with two equivalent La(1)O6 pentagonal pyramids. The P(2)-O(4) bond length is 1.55 Å. The P(2)-O(5) bond length is 1.54 Å. The P(2)-O(6) bond length is 1.55 Å. In the third P site, P(3) is bonded to one C(6), one O(7), one O(8), and one O(9) atom to form distorted PCO3 tetrahedra that share  a cornercorner with one La(1)O6 pentagonal pyramid. The P(3)-O(7) bond length is 1.54 Å. The P(3)-O(8) bond length is 1.57 Å. The P(3)-O(9) bond length is 1.51 Å. In the fourth P site, P(4) is bonded to one C(7), one O(10), one O(11), and one O(12) atom to form PCO3 tetrahedra that share corners with two equivalent La(1)O6 pentagonal pyramids. The P(4)-O(10) bond length is 1.55 Å. The P(4)-O(11) bond length is 1.54 Å. The P(4)-O(12) bond length is 1.55 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a trigonal non-coplanar geometry to one C(1), one C(3), and one C(7) atom. In the second N site, N(2) is bonded in a trigonal non-coplanar geometry to one C(2), one C(6), and one C(8) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one La(1) and one P(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one P(1) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one P(2) atom. In the fifth O site, O(5) is bonded in a distorted linear geometry to one La(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one La(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one P(3) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one La(1) and one P(3) atom. In the ninth O site, O(9) is bonded in a single-bond geometry to one P(3) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one P(4) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one La(1) and one P(4) atom. In the twelfth O site, O(12) is bonded in a distorted bent 150 degrees geometry to one La(1) and one P(4) atom. Linkers: 2 [O]P([O])(=O)[C]N([C][C][C][C][C][C]N([C]P([O])([O])=O)[C]P([O])([O])=O)[C]P([O])([O])=O ,4 [O]P([O])[C]N([C][C][C][C][C][C]N([C]P([O])([O])=O)[C]P([O])([O])=O)[C]P([O])[O]. Metal clusters: 2 [La]. The MOF has largest included sphere 4.20 A, density 1.55 g/cm3, surface area 3929.56 m2/g, accessible volume 0.23 cm3/g