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1
4
264 (s, C–O–C), 1094 (m, aryl C–O) 1023 (m), 733 (s, deform vib,
neighbouring arom C–H), 703 (s, deform vib, 4 neighbouring
[6] B. R. LeBansky, T. D. McKnight, L. R. Griffing, Plant Physiol.
1992, 99, 391–395.
–1
arom C–H), 611 (s) cm .
FeIII
(BMMHPH)(μ-OH)
31 mg, 0.18 mmol) and BMMHPH
[7] Q. Zhang, C. Wang, J. Tian, K. Li, H. Shou, Plant Biol. 2010,
13, 7–15.
[
(
2
2
](BPh
4
)
2
: A solution of iron(II) acetate
(85 mg, 0.18 mmol) in meth-
[
[
8] F. Lin, C. L. Lee, S. S. L. Li, T. M. Chu, Biochemistry 1983, 22,
055–62.
9] a) T. R. Anderson, S. U. Toverud, Arch. Biochem. Biophys.
986, 247, 131–139; b) A. Hara, H. Sawada, T. Kato, T. Nakay-
ama, H. Yamamoto, Y. Matsumoto, J. Biochem. 1984, 95, 67–
4.
2
1
anol (40 mL) was stirred for 10 min. A solution of sodium tet-
raphenylborate (120 mg, 0.35 mmol) was added to the mixture,
which was then filtered and allowed to concentrate to dryness. The
purple solid was redissolved in acetonitrile, and diffusion of the
solution over water resulted in the formation of dark red diamond-
1
7
[10] N. Miti c´ , S. J. Smith, A. Neves, L. W. Guddat, L. R. Gahan,
G. Schenk, Chem. Rev. 2006, 106, 3338–3363.
shaped crystals of diffraction quality (52 mg, 33%). ESI MS
+
(CH
3
CN): m/z = 533.1977 [C28
H
35FeN
3
O
4
] . C104
H
114
B
2
Fe
2
N
6
O
10
[
11] a) P. Comba, L. R. Gahan, G. R. Hanson, V. Mereacre, C. J.
Noble, A. K. Powell, I. Prisecaru, G. Schenk, M. Zajaczkow-
ski-Fischer, Chem. Eur. J. 2012, 18, 1700–1710; b) G. Schenk,
N. Mitic, G. R. Hanson, P. Comba, Coord. Chem. Rev. 2013,
257, 473–482; c) P. Comba, L. R. Gahan, V. Mereacre, G. R.
Hanson, A. K. Powell, G. Schenk, M. Zajaczkowski-Fischer,
Inorg. Chem. 2012, 51, 12195–12209; d) G. Schenk, N. Mitic,
L. R. Gahan, D. L. Ollis, R. P. McGeary, L. W. Guddat, Acc.
Chem. Res. 2012, 45, 1593–1603.
(1741.4): calcd. C 71.73, H 6.60, N 4.83; found C 71.37, H 6.67, N
3 1 2
.85. UV/Vis (CH CN): λ =
= 203 nm (93000 Lmol–1 cm ), λ
–1
4
4
3
93 nm (3000 Lmol–1 cm ). FT-IR: ν˜ = 3435 (w, br., μ-O–H),
–1
3
054–2830 (w, aryl C–H str, OC–H ), 1596 (m, aryl C=C str), 1475
2
(s, C–H deform), 1269 (s, C–O–C), 1087 (m, aryl C–O), 1033 (m),
8
7
81 (m), 846 (m), 733 (s, deform vib, 4 neighbouring arom C–H),
05 (s, deform vib, 4 neighbouring arom C–H), 610 (s) cm . μeff
–
1
B
(solid; 300 K) = 8.02 μ .
[
12] a) M. Jarenmark, H. Carlsson, V. M. Trukhan, M. Haukka,
S. E. Canton, M. Walczak, W. Fullagar, V. Sundstroem, E.
Nordlander, Inorg. Chem. Commun. 2010, 13, 334–337; b) C.
Piovezan, R. Jovito, A. J. Bortoluzzi, H. Terenzi, F. L. Fischer,
P. C. Severino, C. T. Pich, G. G. Azzolini, R. A. Peralta, L. M.
Rossi, A. Neves, Inorg. Chem. 2010, 49, 2580–2582; c) A.
Neves, M. Lanznaster, A. J. Bortoluzzi, R. A. Peralta, A. Ca-
sellato, E. E. Castellano, P. Herrald, M. J. Riley, G. Schenk, J.
Am. Chem. Soc. 2007, 129, 7486–7487; d) M. Lanznaster, A.
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131–135; f) J. J. Danford, P. Dobrowolski, L. M. Berreau, Inorg.
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Averbuch-Pouchot, C. Belle, B. Krebs, J. L. Pierre, E. Saint-
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Y. L. M. Zee, L. R. Gahan, G. Schenk, Aust. J. Chem. 2011,
FeIII
acetate (33mg, 0.19 mmol) in methanol (5 mL) was added dropwise
to a solution of BMMHPH (90 mg, 0.19 mmol) in methanol
8 mL) and the mixture stirred for 10 min. Magnesium(II) acetate
Mg (BMMHPH)
II
(CH
(CH
Iron(II)
[
2
2
3
COO)
2
3
O)
2
](BPh
4
)
2
:
2
(
hydrate (40 mg, 0.19 mmol) in methanol (6 mL) was added and the
mixture heated to reflux for 30 min. Once cool, a solution of so-
dium tetraphenylborate (130 mg, 0.38 mmol) in methanol (4 mL)
was added. After filtering, the mixture was allowed to stand in an
open conical flask at room temperature. The solid that formed was
collected, redissolved in hot methanol (50 mL) and allowed to
stand in a covered conical flask. Orange crystals of diffraction
quality formed after 7 d (26 mg, 14%). ESI MS (CH
3
CN): m/z =
2+
+
636.1 [C62
H
84Fe
40FeKMgN
41FeMgN
2
MgN
6
O
14
]
647.1 [C31
] , 705.1 [C31 44FeMgN
61BFeMgN (995.1): calcd. C 69.11,
H
41FeMgN
3
O
7
] , 661.1
+
+
[
[
C
C
29
H
H
3
O
7
+
H
3 9
NaO ] , 675.2085
32
3
O
8
] . C56
H
3 8
O
H 6.54, Fe 5.84, Mg 1.27, N 4.40; found C 69.0, H 6.59, Fe 5.65,
Mg 1.34, 4.44. UV/Vis (CH CN): 210 nm
= 465 nm (2340 Lmol cm ). FT-IR: ν˜ =
N
3
λ
1
–1
=
6
4, 258–264; j) A. S. Borovik, V. Papaefthymiou, L. F. Taylor,
O. P. Anderson, L. Que Jr., J. Am. Chem. Soc. 1989, 111, 6183–
195; k) M. Ghiladi, C. J. McKenzie, A. Meier, A. K. Powell,
47000 Lmol–1 cm ), λ
–1
–1
(
2
3
3
1
1
057–2812 (m, aryl C–H str, OC–H ), 1598 (s, antisym str, acetate),
6
2
477 (s, C–H deform), 1399 (s, sym str, acetate), 1274 (s, C–O–C),
J. Ulstrup, S. Wocadlo, J. Chem. Soc., Dalton Trans. 1997,
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Szpoganicz, H. Terenzi, P. C. Severino, J. M. Fuller, S. C. Drew,
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Inorg. Chem. 2005, 10, 319–332; o) S. C. Batista, A. Neves, A. J.
Bortoluzzi, I. Vencato, R. A. Peralta, B. Szpoganicz, V. V. E.
Aires, H. Terenzi, P. C. Severino, Inorg. Chem. Commun. 2003,
120 (m, aryl C–O), 1073 (m, aryl C–O), 953 (m), 882 (m), 732
(s, deform vib, 4 neighbouring arom C–H), 705 (s, deform vib, 4
–1
neighbouring arom C–H), 611 (s) cm .
Acknowledgments
The receipt of an ARC Discovery Grant (DP150104358) is ac-
knowledged. In addition, G. S. also acknowledges the receipt of an
ARC Future Fellowship (FT120100694).
6, 1161–1165; p) F. R. Xavier, A. Neves, A. Casellato, R. A.
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Krzystek, J. Telser, G. Schenk, L. R. Gahan, Inorg. Chem.
[
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Eur. J. Inorg. Chem. 2015, 3076–3086
3085
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