Output from "TOTOPOL", (version 1.92, 17 Jul 2017, Mike Treacy).

Report for the framework in file "public/tmp/tmp_15_1_6_L77y23.cif"

There are 8 T-atoms per unit cell
There are 16 O-atoms per unit cell

Framework density = 33.33 T-atoms per nm^3
Material density = 3.326 grams per cm^3 (excluding extra-framework material)
-------------------------------------------------------------------
-------------------------- T-O Analysis ---------------------------
-------------------------------------------------------------------
[Si] Ideal SiO distance = 1.610 Angstrom
T1  -- O1  = 1.7551 Angstrom
T1  -- O2  = 1.6836 Angstrom
T1  -- O3  = 1.6792 Angstrom
T1  -- O1  = 1.7550 Angstrom
      mean = 1.7182 Angstrom
        t1 = 0.100765  (0.0 is a perfect SiO4 tetrahedron)
        t2 = 0.054683  (0.0 is a perfect tetrahedron)

        T-O SUMMARY
          Range  = 1.6792 A <--> 1.7551 A
          Mean   = 1.7182 A
          StdDev = 0.0374 A

       t1 Range  = 0.1008 <-- 0.1008 --> 0.1008
       t2 Range  = 0.0547 <-- 0.0547 --> 0.0547

-------------------------------------------------------------------
------------------------- O-T-O Analysis --------------------------
-------------------------------------------------------------------
O1  -- T1  -- O2  = 101.069 deg; O1  -- O2  = 3 A
O1  -- T1  -- O3  = 101.933 deg; O1  -- O3  = 3 A
O1  -- T1  -- O1  = 130.931 deg; O1  -- O1  = 3 A
O2  -- T1  -- O3  = 122.102 deg; O2  -- O3  = 3 A
O2  -- T1  -- O1  = 101.502 deg; O2  -- O1  = 3 A
O3  -- T1  -- O1  = 101.871 deg; O3  -- O1  = 3 A
       101.069 deg <-- 109.901 deg --> 130.931 deg

        O-T-O SUMMARY
          Range  = 101.0688 deg <--> 130.9312 deg
          Mean   = 108.7922 deg
          StdDev = 12.0962 deg

        O--O SUMMARY
          Range  = 2.6550 A <--> 3.1931 A
          Mean   = 2.7850 A
          StdDev = 0.2106 A

-------------------------------------------------------------------
------------------------- T-T-T Analysis --------------------------
-------------------------------------------------------------------
-------------------------------------------------------------------
------------------------- T-O-T Analysis --------------------------
-------------------------------------------------------------------
T1  -- O1  -- T1  = 130.931 deg ; T1  -- T1   3.1931 A

T1  -- O2  -- T1  = 139.989 deg ; T1  -- T1   3.1639 A

T1  -- O3  -- T1  = 180.000 deg ; T1  -- T1   3.3584 A


        T-O-T SUMMARY
          Range  = 130.9311° <--> 180.0000 deg
          Mean   = 150.3067 deg
          StdDev = 21.7780 deg

        T--T SUMMARY
          Range  = 3.1639 A <--> 3.3584 A
          Mean   = 3.2385 A
          StdDev = 0.0875 A

-------------------------------------------------------------------
------------------------ *** WARNINGS *** -------------------------
-------------------------------------------------------------------

T-T-T analysis was not conducted.

SOME T-ATOM DISTANCES ARE OUTSIDE THE NORMAL RANGE
T1  has 7 neighboring T-atoms within 3.50 A, but only 4 bridging O-atoms
  T1  -- T1  = 3.1931 Angstrom
  T1  -- T1  = 3.1639 Angstrom
  T1  -- T1  = 3.3584 Angstrom
  T1  -- T1  = 3.1931 Angstrom
  T1  -- T1  = 3.3345 Angstrom
  T1  -- T1  = 3.1931 Angstrom
  T1  -- T1  = 3.1931 Angstrom

-------------------------------------------------------------------
---------------------- Topological Analysis -----------------------
-------------------------------------------------------------------
T1 (Si): multiplicity = 8
Coordination Sequence =
    1 4 10 24 50 86 130 182 242 310 386 470 562 662 770 886 1010
TD10 = 1425
Circuit symbol = 4.8_{3}.4.8_{3}.6.8_{2}
Weight = 32
Vertex symbol  = 4.8_{3}.4.8_{3}.8_{2}.*
Weight = 32

<TD10> = 1425.000
Average ring size = 6.6667
