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

Report for the framework in file "public/tmp/tmp_91a_1_225_bybNNP.cif"

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

Framework density = 24.93 T-atoms per nm^3
Material density = 2.487 grams per cm^3 (excluding extra-framework material)
-------------------------------------------------------------------
-------------------------- T-O Analysis ---------------------------
-------------------------------------------------------------------
[Si] Ideal SiO distance = 1.610 Angstrom
T1  -- O1  = 1.5976 Angstrom
T1  -- O1  = 1.7325 Angstrom
T1  -- O3  = 1.6139 Angstrom
T1  -- O2  = 1.5567 Angstrom
      mean = 1.6252 Angstrom
        t1 = 0.168028  (0.0 is a perfect SiO4 tetrahedron)
        t2 = 0.112061  (0.0 is a perfect tetrahedron)

        T-O SUMMARY
          Range  = 1.5567 A <--> 1.7325 A
          Mean   = 1.6252 A
          StdDev = 0.0664 A

       t1 Range  = 0.1680 <-- 0.1680 --> 0.1680
       t2 Range  = 0.1121 <-- 0.1121 --> 0.1121

-------------------------------------------------------------------
------------------------- O-T-O Analysis --------------------------
-------------------------------------------------------------------
O1  -- T1  -- O1  = 123.406 deg; O1  -- O1  = 3 A
O1  -- T1  -- O3  = 115.413 deg; O1  -- O3  = 3 A
O1  -- T1  -- O2  =  63.634 deg; O1  -- O2  = 2 A
O1  -- T1  -- O3  = 116.687 deg; O1  -- O3  = 3 A
O1  -- T1  -- O2  = 122.442 deg; O1  -- O2  = 3 A
O3  -- T1  -- O2  = 102.360 deg; O3  -- O2  = 2 A
       63.634 deg <-- 107.324 deg --> 123.406 deg

        O-T-O SUMMARY
          Range  = 63.6342 deg <--> 123.4057 deg
          Mean   = 107.7749 deg
          StdDev = 21.8250 deg

        O--O SUMMARY
          Range  = 1.6633 A <--> 2.9329 A
          Mean   = 2.5963 A
          StdDev = 0.4630 A

-------------------------------------------------------------------
------------------------- T-T-T Analysis --------------------------
-------------------------------------------------------------------
-------------------------------------------------------------------
------------------------- T-O-T Analysis --------------------------
-------------------------------------------------------------------
T1  -- O1  -- T1  = 149.028 deg ; T1  -- T1   3.2094 A

T1  -- O2  -- T1  = 156.866 deg ; T1  -- T1   3.0501 A

T1  -- O3  -- T1  = 174.567 deg ; T1  -- T1   3.2241 A


        T-O-T SUMMARY
          Range  = 149.0276° <--> 174.5671 deg
          Mean   = 160.1536 deg
          StdDev = 10.9122 deg

        T--T SUMMARY
          Range  = 3.0501 A <--> 3.2241 A
          Mean   = 3.1612 A
          StdDev = 0.0805 A

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

SOME OXYGEN ATOMS ARE TOO CLOSE TO EACH OTHER
O1  -- O2  = 1.6633 A

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  = 3.2094 Angstrom
  T1  -- T1  = 3.1564 Angstrom
  T1  -- T1  = 3.0870 Angstrom
  T1  -- T1  = 3.3282 Angstrom
  T1  -- T1  = 3.2241 Angstrom
  T1  -- T1  = 3.2094 Angstrom
  T1  -- T1  = 3.0501 Angstrom

-------------------------------------------------------------------
---------------------- Topological Analysis -----------------------
-------------------------------------------------------------------
T1 (Si): multiplicity = 8
Coordination Sequence =
    1 4 10 24 47 74 105 145 190 239 299 362 428 507 589 673 770
TD10 = 1138
Circuit symbol = 4.8.4.8_{5}.6.8_{8}
Weight = 33
Vertex symbol  = 4.8.4.8_{5}.8_{6}.8_{8}
Weight = 39

<TD10> = 1138.000
Average ring size = 7.3333
