Structures by: Iwai S. I.

Total: 23

Zn3 Nb2 O8

Nb2O8Zn3

Isobe, M.Marumo, F.Iwai, S.I.Kondo, Y.

Bulletin of the Tokyo Institute of Technology (1974) 120, 1-6

a=19.093Å   b=5.927Å   c=5.22Å

α=90°   β=90°   γ=90°

Na2 (W O4) (H2 O)2

H4Na2O6W

Okada, K.Morikawa, H.Marumo, F.Iwai, S.I.

Bulletin of the Tokyo Institute of Technology (1974) 120, 7-11

a=8.474Å   b=10.602Å   c=13.865Å

α=90°   β=90°   γ=90°

Potassium sulfate - high-temperature phase

K2O4S

Miyake, MMorikawa, HIwai, S I

Acta Crystallographica B (24,1968-38,1982) (1980) 36, 532-536

a=5.947(2)Å   b=5.947(2)Å   c=8.375(3)Å

α=90°   β=90°   γ=120°

Cd5 H2 (P O4)4 (H2 O)4

Cd5H10O20P4

Hideki, A.Masaru, A.Iwai, S.I.

Iyo Kizai Kenkyusho Hokoku, Tokyo Ika Shika Daigaku (1976) 10, 63-68

a=17.887Å   b=9.394Å   c=9.675Å

α=90°   β=96.59°   γ=90°

Na Cd (P O4)

CdNaO4P

Hata, M.Akao, M.Okada, K.Iwai, S.I.Aoki, H.

Research Laboratory on Engineering Materials, Tokyo Institute of Technology: Report (1979) 4, 43-48

a=6.5Å   b=10.842Å   c=5.051Å

α=90°   β=90°   γ=90°

K Mg2.75 Si3.5 Al0.5 O10 F2

Al0.5F2KMg2.75O10Si3.5

Toraya, H.Iwai, S.I.Marumo, F.Nishikawa, T.Hirao, M.

Mineralogical Journal (Japan) (1978) 9, 210-220

a=5.292Å   b=9.164Å   c=10.143Å

α=90°   β=100.07°   γ=90°

K Mg3 Ge3 Al O10 F2

AlF2Ge3KMg3O10

Toraya, H.Iwai, S.I.Hirao, M.Marumo, F.

Mineralogical Journal (Japan) (1978) 9, 221-230

a=5.417Å   b=9.345Å   c=10.468Å

α=90°   β=100.03°   γ=90°

Cs6 (W11 O36)

Cs6O36W11

Okada, K.Marumo, F.Iwai, S.I.

Acta Crystallographica B (24,1968-38,1982) (1978) 34, 50-54

a=37.8Å   b=7.261Å   c=12.577Å

α=90°   β=102.81°   γ=90°

Rb22 W32 O107

O107Rb22W32

Okada, K.Marumo, F.Iwai, S.I.

Acta Crystallographica B (24,1968-38,1982) (1977) 33, 3345-3349

a=15.966Å   b=15.966Å   c=10.099Å

α=90°   β=90°   γ=90°

Ca (Ta4 O11)

CaO11Ta4

Isobe, M.Marumo, F.Iwai, S.I.Kimura, M.

Acta Crystallographica B (24,1968-38,1982) (1975) 31, 908-910

a=6.2173Å   b=6.2173Å   c=12.271Å

α=90°   β=90°   γ=120°

Na2 (W2 O7)

Na2O7W2

Okada, K.Morikawa, H.Marumo, F.Iwai, S.I.

Acta Crystallographica B (24,1968-38,1982) (1975) 31, 1200-1201

a=7.216Å   b=11.899Å   c=14.716Å

α=90°   β=90°   γ=90°

Li2 W2 O7

Li2O7W2

Morikawa, H.Okada, K.Marumo, F.Iwai, S.I.

Acta Crystallographica B (24,1968-38,1982) (1975) 31, 1451-1454

a=8.283Å   b=7.05Å   c=5.037Å

α=85.4°   β=102.13°   γ=110.29°

Sr2 (Ta0.88 Nb0.12)2 O7

Nb0.24O7Sr2Ta1.76

Ishizawa, N.Iwai, S.I.Marumo, F.

Acta Crystallographica B (24,1968-38,1982) (1981) 37, 26-31

a=3.961Å   b=27.11Å   c=5.678Å

α=90°   β=90°   γ=90°

Sr2 (Ta2 O7)

O7Sr2Ta2

Ishizawa, N.Marumo, F.Iwai, S.I.

Acta Crystallographica B (24,1968-38,1982) (1981) 37, 26-31

a=3.94Å   b=27.15Å   c=5.692Å

α=90°   β=90°   γ=90°

Ca2 (Nb2 O7)

Ca2Nb2O7

Ishizawa, N.Kimura, M.Iwai, S.I.Marumo, F.Kawamura, T.

Acta Crystallographica B (24,1968-38,1982) (1980) 36, 763-766

a=7.697Å   b=13.385Å   c=5.502Å

α=90°   β=90°   γ=98.34°

K Mg2.5 Ge4 O10 F2

F2Ge4KMg2.5O10

Toraya, H.Iwai, S.I.Marumo, F.Hirao, M.

Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (145,1977-148,1979) (1978) 148, 65-81

a=5.421Å   b=9.353Å   c=10.533Å

α=90°   β=100.14°   γ=90°

K Li Mg2 Ge4 O10 F2

F2Ge4KLiMg2O10

Toraya, H.Marumo, F.Iwai, S.I.Hirao, M.

Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (145,1977-148,1979) (1978) 148, 65-81

a=5.395Å   b=9.341Å   c=10.547Å

α=90°   β=99.87°   γ=90°

K0.88 Mg2.5 Si4 O10 F2

F2K0.88Mg2.5O10Si4

Toraya, H.Marumo, F.Iwai, S.I.Daimon, M.Kondo, R.

Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (-144,1977) (1976) 144, 42-52

a=5.253Å   b=9.086Å   c=10.159Å

α=90°   β=99.89°   γ=90°

Magnesite

CMgO3

Oh, K. D.Morikawa, H.Iwai, S. I.Aoki, H.

American Mineralogist (1973) 58, 1029-1033

a=4.637Å   b=4.637Å   c=15.023Å

α=90°   β=90°   γ=120°

Barite

BaO4S

Miyake MMinato IMorikawa HIwai S I

American Mineralogist (1978) 63, 506-510

a=7.157Å   b=8.884Å   c=5.457Å

α=90°   β=90°   γ=90°

Celestine

O4SSr

Miyake, M.Minato, I.Morikawa, H.Iwai, S. I.

American Mineralogist (1978) 63, 506-510

a=6.870Å   b=8.371Å   c=5.355Å

α=90°   β=90°   γ=90°

Anglesite

O4PbS

Miyake, M.Minato, I.Morikawa, H.Iwai, S. I.

American Mineralogist (1978) 63, 506-510

a=6.959Å   b=8.482Å   c=5.398Å

α=90°   β=90°   γ=90°

Potassium Tetratungstate

K2O13W4

Okada, K.Marumo, F.Iwai, S. I.

Acta Crystallographica B (24,1968-38,1982) (1978) 34, 11 3193-3195

a=15.566(1)Å   b=15.566(1)Å   c=3.746(1)Å

α=90.°   β=90.°   γ=120.°