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

Report for the framework in file "public/tmp/tmp_50-2_1_5_BYPPic.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  = 1.6164 Angstrom
T1  -- O2  = 1.6437 Angstrom
T1  -- O3  = 1.7135 Angstrom
T1  -- O4  = 1.6746 Angstrom
      mean = 1.6621 Angstrom
        t1 = 0.194798  (0.0 is a perfect SiO4 tetrahedron)
        t2 = 0.186843  (0.0 is a perfect tetrahedron)

        T-O SUMMARY
          Range  = 1.6164 A <--> 1.7135 A
          Mean   = 1.6621 A
          StdDev = 0.0367 A

       t1 Range  = 0.1948 <-- 0.1948 --> 0.1948
       t2 Range  = 0.1868 <-- 0.1868 --> 0.1868

-------------------------------------------------------------------
------------------------- O-T-O Analysis --------------------------
-------------------------------------------------------------------
O1  -- T1  -- O2  =  68.692 deg; O1  -- O2  = 2 A
O1  -- T1  -- O3  =  72.235 deg; O1  -- O3  = 2 A
O1  -- T1  -- O4  = 127.190 deg; O1  -- O4  = 3 A
O2  -- T1  -- O3  = 140.902 deg; O2  -- O3  = 3 A
O2  -- T1  -- O4  =  89.868 deg; O2  -- O4  = 2 A
O3  -- T1  -- O4  = 113.154 deg; O3  -- O4  = 3 A
       68.692 deg <-- 102.007 deg --> 140.902 deg

        O-T-O SUMMARY
          Range  = 68.6922 deg <--> 140.9016 deg
          Mean   = 102.0066 deg
          StdDev = 27.7092 deg

        O--O SUMMARY
          Range  = 1.8395 A <--> 3.1638 A
          Mean   = 2.5145 A
          StdDev = 0.5099 A

-------------------------------------------------------------------
------------------------- T-T-T Analysis --------------------------
-------------------------------------------------------------------
-------------------------------------------------------------------
------------------------- T-O-T Analysis --------------------------
-------------------------------------------------------------------
T1  -- O1  -- T1  = 178.996 deg ; T1  -- T1   3.2327 A

T1  -- O2  -- T1  = 160.160 deg ; T1  -- T1   3.2383 A

T1  -- O3  -- T1  = 151.673 deg ; T1  -- T1   3.3229 A

T1  -- O4  -- T1  = 180.000 deg ; T1  -- T1   3.3491 A


        T-O-T SUMMARY
          Range  = 151.6732° <--> 180.0000 deg
          Mean   = 167.7073 deg
          StdDev = 12.3664 deg

        T--T SUMMARY
          Range  = 3.2327 A <--> 3.3491 A
          Mean   = 3.2858 A
          StdDev = 0.0520 A

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

SOME OXYGEN ATOMS ARE TOO CLOSE TO EACH OTHER
O1  -- O2  = 1.8395 A
O1  -- O3  = 1.9644 A
O1  -- O3  = 1.9644 A
O1  -- O2  = 1.8395 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  = 3.2327 Angstrom
  T1  -- T1  = 3.3219 Angstrom
  T1  -- T1  = 3.3229 Angstrom
  T1  -- T1  = 3.3491 Angstrom
  T1  -- T1  = 3.4300 Angstrom
  T1  -- T1  = 3.2383 Angstrom
  T1  -- T1  = 3.2393 Angstrom

-------------------------------------------------------------------
---------------------- Topological Analysis -----------------------
-------------------------------------------------------------------
T1 (Si): multiplicity = 8
Coordination Sequence =
    1 4 10 24 48 83 127 179 237 300 374 462 555 651 757 878 1005
TD10 = 1387
Circuit symbol = 4.8_{6}.4.8_{6}.6.8_{6}
Weight = 20
Vertex symbol  = 4.8_{6}.4.8_{6}.8_{6}.8_{6}
Weight = 32

<TD10> = 1387.000
Average ring size = 7.4286
