Li(TmGe2)2 crystallizes in the monoclinic Pm space group. Li(1) is bonded in a 5-coordinate geometry to four equivalent Tm(2), one Ge(3), two equivalent Ge(1), and two equivalent Ge(2) atoms. There are two inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 10-coordinate geometry to two equivalent Ge(1), two equivalent Ge(2), two equivalent Ge(3), and four equivalent Ge(4) atoms. In the second Tm site, Tm(2) is bonded in a 14-coordinate geometry to four equivalent Li(1), two equivalent Ge(1), two equivalent Ge(2), two equivalent Ge(4), and four equivalent Ge(3) atoms. There are four inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 2-coordinate geometry to two equivalent Li(1), two equivalent Tm(1), and two equivalent Tm(2) atoms. In the second Ge site, Ge(2) is bonded in a 2-coordinate geometry to two equivalent Li(1), two equivalent Tm(1), and two equivalent Tm(2) atoms. In the third Ge site, Ge(3) is bonded in a distorted single-bond geometry to one Li(1), two equivalent Tm(1), four equivalent Tm(2), and two equivalent Ge(4) atoms. In the fourth Ge site, Ge(4) is bonded in a 8-coordinate geometry to two equivalent Tm(2), four equivalent Tm(1), and two equivalent Ge(3) atoms.
Li(TmGe2)2 crystallizes in the monoclinic Pm space group. Li(1) is bonded in a 5-coordinate geometry to four equivalent Tm(2), one Ge(3), two equivalent Ge(1), and two equivalent Ge(2) atoms. There are two shorter (3.06 Å) and two longer (3.14 Å) Li(1)-Tm(2) bond lengths. The Li(1)-Ge(3) bond length is 2.35 Å. There is one shorter (2.46 Å) and one longer (2.48 Å) Li(1)-Ge(1) bond length. Both Li(1)-Ge(2) bond lengths are 2.41 Å. There are two inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 10-coordinate geometry to two equivalent Ge(1), two equivalent Ge(2), two equivalent Ge(3), and four equivalent Ge(4) atoms. There is one shorter (2.97 Å) and one longer (3.01 Å) Tm(1)-Ge(1) bond length. Both Tm(1)-Ge(2) bond lengths are 3.01 Å. There is one shorter (3.17 Å) and one longer (3.18 Å) Tm(1)-Ge(3) bond length. There are two shorter (2.96 Å) and two longer (2.98 Å) Tm(1)-Ge(4) bond lengths. In the second Tm site, Tm(2) is bonded in a 14-coordinate geometry to four equivalent Li(1), two equivalent Ge(1), two equivalent Ge(2), two equivalent Ge(4), and four equivalent Ge(3) atoms. Both Tm(2)-Ge(1) bond lengths are 3.32 Å. There is one shorter (3.27 Å) and one longer (3.32 Å) Tm(2)-Ge(2) bond length. There is one shorter (3.36 Å) and one longer (3.39 Å) Tm(2)-Ge(4) bond length. There are two shorter (3.04 Å) and two longer (3.06 Å) Tm(2)-Ge(3) bond lengths. There are four inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 2-coordinate geometry to two equivalent Li(1), two equivalent Tm(1), and two equivalent Tm(2) atoms. In the second Ge site, Ge(2) is bonded in a 2-coordinate geometry to two equivalent Li(1), two equivalent Tm(1), and two equivalent Tm(2) atoms. In the third Ge site, Ge(3) is bonded in a distorted single-bond geometry to one Li(1), two equivalent Tm(1), four equivalent Tm(2), and two equivalent Ge(4) atoms. Both Ge(3)-Ge(4) bond lengths are 2.55 Å. In the fourth Ge site, Ge(4) is bonded in a 8-coordinate geometry to two equivalent Tm(2), four equivalent Tm(1), and two equivalent Ge(3) atoms.